Ironically, my left arm has been hurting something fierce last few weeks. Nit because I curl that much, haven't been to the gym in a long time and I only have small 25 pounds at home, but the combination of throwing clothes, running around with 80 pound bins, throwing around 30 pound engines non stop, all if it for 8 hours a day 7 days a week for the last three wewks, is really starting to hurt this old body lol.
But, I do remember that feeling. I used to train three hours a day and curl 60's. Which for my size, is a lot.