For the last 3-4 years I have been experiencing a separation of my thumbnail from the quick starting where I contact the strings. My dermatologist said it was from "repeated trauma" and the answer was to rest it. It takes months to grow back. I've been playing with nails, fingerstyle and classical for 50 years or more. I don't like fingerpicks, don't want to change. Has anyone else experienced this? Any other solutions?