I noticed a ton of hair loss initially as well, but my hair was getting fuller and I was growing hairs I had not before.
Don't worry too much about it, wait at least a year before freaking out! I already did the freaking out for you

You should be seeing your doctor soon, he or she will check your E levels make sure they are not too high. My doctor saw me 3 months after starting HRT, to see how it was working out in my blood. My doctor suggested another T Blocker if I was that scared but I decided to stick with what was working for my hormonal levels and at the end of the day I am glad I did.
I still loose hair, but its normal loss and not scary loss.