Alright, this is a little strange. About three weeks ago I began taking 900mg of Valcyte a day, AHCC, and a very low dose of a beta blocker for my POTS. Since then, my fingernails have gradually started separating form the nail beds. It is very painful! I'm wondering if this has ever happened to anyone before? I think that the most likely culprit is the Valcyte. I believe it can cause anemia, and anemia can cause this sort of thing with ones fingernails. If anyone knows this for certain or knows of any other possible cause, please let me know. Here is a pic of what I'm talking about. It's like this on all the nails on all of my fingers, and the separated part is getting larger by the day.