I would say yes but in reverse, I am much nicer as a girl.   As a guy I don't think I was a terribly angry or unkind person, but I carried a lot of unhappiness inside me that I tried not to let show that would spill out sometimes as anger when even small things would throw me off kilter and I would be like where did that come from because I was so numb and oblivious from denial.

I think it was just angst from my life being wrong.   Maybe the 'feeling fake' thing you speak of?  I would even wonder if this is maybe an affirming thing that being a guy is right for you?  I know I take my happiness and patience and kindness toward frustrating people to be an affirmation I am headed in the right direction myself.  Being my real self lets me be a better person.

I actually have grown even more blunt and overall "b!tchy" since my official coming out as transmale. I was already quite blunt, so blunt that friends would often come to me for advice because I wouldn't just tell them what they wanted to hear; I told them how I thought it was and so on. Now, I've really lost the feminine motherly nurturing aspect of my personality. It's almost like what I've heard of people's mental thought changes after going on T. The "there there carebear" aspect of my personality is almost completely gone; things are as they are and that's that, and I'll tell you exactly what I think, or say nothing at all. Not that I'm not a nice person normally, it's just when things need to be said, I'm not afraid to say them. I can't imagine what I'll be like on T. I don't know if these changes are just growing older, and therefore less romantic (love-wise and adventure/imagination-wise, though the less romantic thing could be a part of presenting myself as male), or if it's part of my new presentation of myself. I'm certainly not doing it on purpose, but I'm not going to stop it right now. My best friend says it's one of the things he loves most about me.