in week 10 test e

Hey Bro's,
I'm in wk 10 of my test e only cycle i'm up about 12lbs. but I look like i'm up 20lbs everything is going well the only real side effect other then some serious muscle and vains I didn't know I had, I have noticed hairs on my shirt throughout the day and when I wash my hair I have counted as many as 20 I have thick hair and I cannot tell that it's thinned out,I didn't notice this until wk 8, but should I be concerned I know it is genes but should I take something for this I was only going to do a 10wk cycle so should I just hold off and see if I stop losing any when I stop. BTW i'm 28.
Thanks