I lost tons of hair too and think im still losing some. I'm 28 and its completely noticeable! I tried using nioxin, it didnt work, so i bought a product called dermmatch. You basically colour your scalp the same shade as your hair so there is no scalp showing through. Works great. However if any more hair falls out i dont know what i'll do!
I also gained quite a bit of belly weight. The worst kind! I read that high cortisol levels from stress will cause that to happen. Fun Fun....
Oh and like Thumper...i got lots of yeast infections too. Ahhh the joy of being female and stressed!