A couple days ago, I made a post about my skill decreasing. Apparently that was due to me not being properly warmed up. However, in that same post I mentioned my hand hurting, and how I continued to play for roughly 8 hours that day. Today I played for another extended period, and ended up feeling the pain again. It is in the hand I hold my pen with. It is a burning pain that spreads from my wrist to my fingertips. Does this mean I should try holding my pen lighter, or is it something more severe? The pain was only temporary, lasting about 10 minutes