a quick intro about myself before I begin: I'm 29 years old, I've been on T now for *counts on fingers* 6-7 months. I'm kind of a loner (honestly I enjoy the time to myself lol), I work a full time job, and I'm not good at meeting women (too shy, been hurt too much). I wasn't the healthiest person, I ate a lot of crap.. sat around playing video games, and doing absolutely nothing. Being active for me was going to work (it's pretty physical work, not a desk job). I've gained a lot more weight on T. I started at 150lbs now i'm 170 (I'm not a big guy either, 5'6-5'7.. twigs for arms) I'm still in the process of really getting confident with my true identity. I mean I'm 100% happier than how I was and I'm definitely now trying to become the man I want and always dreamed of being.
Unfortunately we obviously can't decide what happens when we take T.
I had gotten some acne on my face but mainly just big nasty zits. All of the acne I had, was on my shoulders and my back, also a little on my neck.
I started using some proactive body wash.I completely cut soda,greasy fast food and anything with high fructose out of my diet. I have also been bringing my own food to work (salads with some kind of meat) and drinking water or coconut water. Anytime I crave anything sweet or salty I go straight for fruits or veggies. SO with these changes I have noticed that my acne is starting to clear up a whole. You're going to break out no matter what, it's just like puberty all over again. I see you say you work out already and eat pretty healthy, so you should be ok.
The weight gain in my middle is also an issue for me. I have also started working out more (abs,boxing,push ups, weights). My stomach has been kind of bloated looking even before starting my T shots. My doctor recommended for me to start cutting down on red meats.. (I never really ate that much of them in the first place.. maybe twice a week?) But again you say you're pretty healthy and you stay active so you should be good. I'm not sure how long the weight gain lasts though (I was actually more excited about the weight gain since I've always been skinny), I know it takes about 5 years until you've pretty much hit your peak on T. So maybe around that time frame or so?
I don't have hair loss in my family. So I'm not gonna be very helpful on that subject. BUT for hair "gain".. I can say I've gained a lot more facial hair and it's a bit darker on my upper lip and my chin. Still have peach fuzz on my cheeks and stuff. I'm also starting to get darker hairs on my chest, stomach, and upper thighs. My best friend who is also transitioning (he's been on T about 2 months more than I) has really long dark hairs now on his nipples and chest. His arm pit hair is also pretty ridiculous. Mine is pretty light and sad looking lol. His facial hair though is not as dark as mine is though. He has told me hair loss does run in his family so he just ended up shaving his head and said "oh well."
There is always going to be risks no matter what. Also you're going to become infertile at some point from the T anyways. Don't be scared dude! This is about becoming the man you were born to be. This is about being happy and living the rest of your life the way you were meant to! Just continue to see your doctor on a normal basis and keep getting your heart thing checked out. Continue being active and healthy, you'll be fine!!