Major hair loss! I'm only taking .5 Reta but also KLOW, Epitalon and DSIP the last 3 weeks. Is the Reta causing it?

The last time I had hair loss like this was when I tried testosterone, I stopped it last year so it's not that. I did just start taking Progesterone but I've taken this before and its never caused hair loss. I'm starting to freak out a bit. I'm also hypothyroid but I've been in normal ranges for years now. I'm going to get it checked again next week.

My eating hasn't changed so 1500 or more calories bc I'm not getting much appetite suppression etc on .5mg. I've only been on Reta for 3 weeks.