I wish this was more acknowledged by the trans male community. Regarding aggression the overwhelming consensus seems to be "oh yeah that's just a myth and when you start T you will feel less aggressive, not more." This was not my experience. Though, when you think about it, you're getting a surge of hormones in your body, and going through a second puberty... who's to say the emotional effects will be the same in everyone? Is it that far-fetched to believe starting T might actually make you feel more angry and aggressive?
The way I see it, feeling comfortable in your body has nothing to do with how you react to situations that provoke you... they are independent of one another. I felt so zen after my first shot, and way more comfortable with myself than I ever was. But after a bit of time I went through what could be described as "roid rage". Granted, I doubt taking hormones would make you behave in any way you aren't already "programmed" for. I was reading old journals of mine and realized I always was kind of aggressive and angry in certain circumstances, so it's not like T made me some hulking monster. It's just that for a good couple of months I could get super aggressive at the flick of a switch, whereas before it might take a lot to finally get me to act that way. I've mellowed out now, which is a huge relief. The dosing might have had something to do with it too. Unlike many guys, I was never on a consistent dose from day one. It was slowly ramped up over the course of several months. My body might have been trying to tell me to pick one hormone or the other, not keep it in a state of constant flux. John Alex, I would not worry about this, I'm going to say it's normal, but pay attention to your overall mood and see if changing your dose might help--if not, ride it out for a few more months and see if you simmer down naturally.