Hi guys, I am new here and I created this account for this specific question. I couldn't find anything and I hope this is the right forum. I've been playing for 2 years now. 3 days ago I played for like 2 - 3 hours straight fingers only and really hard as well. Yesterday I have noticed a weird discoloration on my index fingertip. I have no idea if maybe plucking too hard may have caused it. It doesn't hurt either. It just some weird brown spot and it looks like the skin might have been burned? Here is a pic: Anyone else had this before? Should I be worried?