Welcome to Susan's orangejuice!

Holy crap hun, that first post is an essay worthy of one of my own posts!
<3Well hunni, as the others have said, your story doesn't sound at all strange to us. Many (perhaps even most?) of us have had the same or similar experiences in one form or another. Definitely put this to a gender therapist and see what they say (hell, save yourself some energy and just print out what you've already written here and show it to them

). I'll try and answer the main questions you seem to be having, but remember this is just my opinion. I'm not a gender expert by any stretch of the imagination so I could be wrong, but here are my thoughts anyway:
"Am I transgendered?"From what you've described there hun, I'd personally say a big fat
"yes"!

As I've been realising myself recently, cis-gendered people (i.e. "normal / non-trans* people") never question their gender. They "just
*know*" what their gender is, so why would they even think to ask questions about it? At most they might ask the question for a brief, fleeting moment before laughing at the idea and shrugging it off, but they certainly don't have persistent thoughts of having a gender that doesn't align with their birth sex like trans* folk do. From what you're describing here, it sounds like you've been having very persistent thoughts / questions about being female (or at least "not being male"). To me, that doesn't sound like someone who is certain about their gender. That sounds like someone who is mis-aligned and is trying to align themselves with their body, largely because of social expectations ("you're born with a penis, so you have to act like a man"). As far as I can see, there seems to be little doubt that you're trans* hunni, because you're certainly not cis-gendered that's for sure lol!

That does lead us onto the next question though:
"Am I a girl?"This is perhaps a slightly different question (and one that I'm honestly still trying to get an answer to for myself). In your case I think the answer is "probably", but don't forget - contrary to popular misconception - gender isn't a binary thing. There's many shades of grey between "male" and "female". Maybe you're just a feminine guy, perhaps you're a tomboy type of female (that's kinda where I seem to be settling), perhaps you're androgynous (smack-bang in the middle), perhaps you're "gender-fluid" and change on a daily basis, or perhaps you're outside of the whole "male / female" spectrum as something new altogether. You do seem to be describing a contentment on the female side of the line, which is why I say "yes", but that is something you're going to have to discover for yourself with therapy, introspection and most importantly - experimentation. Your fantasies about being female (even the sexual ones) seem to point fairly strongly in this direction. For the record, I imagined myself as female explicitly in my non-sexual fantasies, and indirectly in my sexual ones. I'd always imagine a woman I was attracted to having sex - not "me having sex with her" (any time I tried to do that, it'd just kill the mood completely), but just her having sex with some non-descript entity that wasn't me. I could only get off on it when I did that. Even when I had sex for real, I'd always focus on what she was feeling (seeing it through her eyes, essentially). It wasn't until recently that I realised what I was doing was "being her", so when I was having sex for real, I was kinda having sex with myself in a weird sorta way.. This has been one of the major things for me that made me realise I was trans*, so yeh I know the feeling hun, don't worry about that

Speaking of sexuality though:
"What's my sexuality?"Now notice I've so far not mentioned your sexuality? That's because your physical sex (i.e. what your body is), your gender identity (what you identify with / what you feel inside that you are) and your sexuality (who / what you're attracted to) are three independent aspects to you as a person. Your sexuality definitely seems a bit "up in the air", so let's have a look at this a little deeper.
As I mentioned above, you definitely seem more at home when you're imagining yourself as female. You mentioned that you generally don't feel attracted to guys for the most part, but you do fantasise about being with them when you're in girl-mode. You also mentioned how much you like trans* porn (hehe, I can relate to that - there's a lot of cute trans* girls out there
<3 
). So first of all, have you ever tried on a lesbian fantasy? I.e. with both her
*and you* as girls? It's quite easy - just imagine your man-bits are actually a dildo going into your own lady-parts (lol oh my, this is getting a little steamy, isn't it?
#Blushing 
). It might be that you're attracted to girls, but because you keep imagining yourself in the wrong role, it kills the mood. Like I said above, I find no matter how attractive a woman is to me, I simply can't do anything if I think of me being in the male role during sex (fantasy or real). It might well be the same for you too hun

The "men" aspect might just be that you're not partial to genitals. Again, this is something I can relate to myself - I personally love man-bits and lady-parts in pretty much equal measure. I don't however find myself at all attracted to the rest of the male form, or masculine gender. In fact I find masculinity in its extreme form actively repulsive (no offence to any of the guys here of course - you're all lovely!
<3 
). Again, it might be a similar case for you hun. Alternatively you might just be finding that you're bi-curious or something of a similar nature. Alternative number 3 - you might be letting go of suppressions and pressures to "be into women because you were born male", so what you might be doing is discovering that you're actually attracted to men, and the bits in between where you don't feel anything for them might just be those suppressions kicking back in. There's nothing wrong with being attracted to men, and you owe it to yourself to let go of your hangups and let that cute little brain of yours explore and be free during your fantasies. That way your true sexual preferences will start to shine through

On the female side of it, it's possible that you're attracted to personality / relationship / connection between you more than a person's physical body. Your description of fantasising about having an orgasm just by hugging / kissing etc is what I'm picking up on here. A lot of cis-gendered men never understand the idea that women can climax from emotional connections rather than visual stimuli (which is what men tend to do). What you're describing here sounds a hell of a lot like that to me, and is additional evidence that you are girl-brained hunni
And finally...I'll leave it there for now because this is getting long lmao!

Hopefully I've been of some assistance to you hun. Just out of curiosity, how do you feel when I say:
♥Welcome to the family, sister!♥ 
The answer to that question would be quite telling lol

Just to wrap this post up, here's a couple of articles I've found lately that summarise things quite well:
http://www.plannedparenthood.org/health-info/sexual-orientation-gender/gender-gender-identityhttp://sites.psu.edu/evolutionofhumansexuality/2014/04/07/gender-identity-nature-vs-nurture/Hope I've helped hun! And remember - you're never alone!
<3 *Hugs* <3