Hair loss/thinning hair

I had my surgery April 12, I am down exactly 50 pounds and I have only one complaint; my hair is getting thinner by the day. I read on this forum about people experiencing the hair loss so I was expecting it. I was hoping it wouldn't actually happen to me but I was aware that it could. Can anyone share any tips for slowing it down? 
I am taking Biotin and have been since about a week out from surgery. I feel so good about myself but losing a lot of my hair is not going to look very good!

From all of the reading I've done, it seems biotin and using Nioxin Shampoo are the most common suggestions (I'm pre-op, so cannot confirm). Lots of people say there is not much to be done, but to be kind and gentle with your hair. It will stop shedding at some point, and WILL grow back. When I first started my research, this is what scared me the most. I'm trying to worry less.

Well, I guess as we lose our hair, at least we are losing our butts too!

I wish we would lose our armpit hair and the hair down yonder! lol  Maybe some leg hair at the same time!

I'm in the same boat right now.

I am losing my hair too! Taking Biotin but not sure if it actually works. My pony tail is soooo thin now and my hairline is thinning. Totally bummed too!
But yes on a positive note my butt is shrinking!

My Doctor recommended a zinc supplement daily, as well as the biotin.