Hi everyone,
I would like to get the opinion of some of the lovely people on here

I have lived my whole life without questioning my manhood. However, ever since puberty, I have always had sexual fantasies about being in a womans body in sexual situations. So basically when I masturbate I tend to imagine myself as the woman in the porn I am watching or even having sex with my girlfriend, I sometimes as I imagine myself as her. For a really long time I thought those fantasies meant that I was gay. However, I am not attracted to men, and I am definitely attracted to women. So I really don't see these fantasies meaning I am gay. So recently I posted in a facebook group dedicated to sexual fantasies asking if people thought my own fantasies were weird, and a handful of people suggested that I was trans and didn't realize it. Others suggested it would be damaging to my mental health for others to inform me I am trans because I have been having these fantasies my whole life, because gender identiy is a completely seperate entity than sexual orientation. For the latter reason, I don't want to jump into assuming I am trans if it is not necessarily the case. However, without jumping to conclusions, I am trying to be as open minded here as possible, So I have a few questions for you all!
-What kind of things do I need to be asking myself(or possibly experiment with) to allow me to discover whether or not I am trans? I don't know where to start which makes it extremely hard for me to explore this.
-Has anyone else had a similar fantasy that eventually led to them realizing that they were trans?
-If I we're trans, would I simply know it? Is the fact that I am unsure a sign that I am not?
I have OCD, and part of that is obsessing over things that I may or may not have (sickness usually, but in this case people suggested I was trans and I haven't been able to get it out of my head for like a week now), so I just want to make sure I am exploring things in a healthy way.
Other random things you should know about me:
-I hate my chest hair, and shave it off very often
-Aside from video games, I am not into most things that would be considered "masculine" or whatever
-I have always been jealous of the role of women in dating and general social roles, and wish I could have their social role (although this is something I might be able to chalk up to being shy because i have initiating conversations with women i am interested in)
-I have always been captivated by movies/books/shows that involved body swaps (ex: freaky friday, ranma half)
-Although I am definitely not gay, because I know I am not attracted to men, I have never found myself particularly attracted to vaginas like most men seem to be. But like I said, not attracted to guys, very attracted to women. When I masturbate, it is rarely to the thought of being <not allowed> by a man, but more like blowing a man.
-Although my sexual fantasies are now of me being in a womans body while having sex, when i first hit puberty, I would masterbate exclusively to the thought of just being a women in non sexual situations
At the same time, I just cherry picked what made me suspicious about being trans. I could also probably come up with a whole list of stuff that would reaffirm that I am not trans.
There is so much stuff that may be able to be chalked up to being shy or just being a feminine guy and nothing more, and other stuff I am not so sure, so i just wanted to get thoughts from you all.
Thank you for taking the time to read