Hi.. Just wanted to say I went through the SAME THING.. I paniced because I had really long thick hair that I was actually very very happy with and it was falling out like CRAZY.. And I mean A LOT of hair! Anyhow, it lasted about a month or two so and I was really worried if it didn't stop I'd go lose it ALL.. but that didn't happen even though it started to look like it was getting thin. I ended up getting my hair trimmed and eventually it stopped! I read somewhere that this happens when your body goes through some sorta shock. It goes into a premature hair cycle. For me, I believe it was losing 100 pounds. Anyhow, what I'm trying to say is, I think you'll be ok.. don't fret, I had the same thing happen to me and it did stop. My hair is fine now and it's growing nicely. Hope this will give you some peace of mind.
I also wanted to say that I started taking Whole Source Supplements I purchased from my local Rite Aid along with Biotin and Calcium.
My progress pics: