Hi, since BnC I've developed something very similar, something called "nail clubbing". Normally, it is a condition which develops when there is serious illness around, like lung cancer. I did extensive tests and everything checked out fine, apart from slight LVH hyperthrophy. What I observed is that nails started to change when I started using nandrolone. Doctors told me it could be genetical, still sometimes I get paranoid about it. Have you been to a doctor?