I am so thankful I found this site, as many have already expressed. I had my 8th back surgery on 2-28-2017. Things went wrong, and I hàd severe leg pain from nerves. They put me on this drug and I just started to notice a ton of hair falling out. I have such thick hair, and everyone has always been amazed at it. At this rate I’ll be buying a wig! 

See a doctor who specializes in hair loss, like us for example. The stress you have defined in your problem to me plus possibly the drugs you are on, in combination can cause hair loss. You should see an expert doctor who can assess your hair loss.