Gastric Bypass Cost

I was wondering is there anyone out there who’s had Gastric Bypass, and did you lose 40-50% of your hair? I had a very thick beautiful mane of hair, and long too, and I’ve had to cut it to my shoulders because I lost about %50 of my hair. I know it does grow back, but how long did it take before you saw a difference in the thickness of your hair? I have to keep mine up in a barrett because there’s no body to it, and it’s just mainly strings. How do you style your thinning, or already thinned hair?