Guys I need help! Recently I ran into the problem with my thumb where it would hurt alot and I just thought to myself "meh it's juust sore. It'll fix on it's own". But almost a month passed and I still experience it! To be clear while I'm playing it's not a problem. The problem occurs when I do the 1-2-3-4 exercise on the lowest frets or when I play it backwards like 4-3-2-1. Maybe it's a strech issue or something but I thought I might ask you. And Not like I have small hands. Thank you!