My finger nails have been in a terrible condition for about a year, ridges running vertically up each nail, constantly braking and splitting unable to grow them at all. Also Toenails so brittle they almost shatter if knocked. A few weeks ago I noticed my thumb cuticle seemed to be developing another cuticle above it (2 white half moons) then a layer started lifting from the cuticle up, I've now lost about a quarter of the nail with what looks like pink nail underneath there is no pain. The whiteness extends half way up my nail though and I think it will keep coming away to this point. I haven't banged it or hurt it in any way and I'm not really sure what will happen now or whether another layer will grow from the cuticle, any ideas?