I did the same exact thing last week - pulled a muscle while hauling in firewood. OMG the pain was unbearable. On day 2, I sneezed and thought I was going to go through the roof! On day 3 I was practically in tears when I left the office, praying that traffic wouldn't be too bad, because I just wanted to get home and lie down. I was so exhausted from working through the pain that I crashed on the couch at like 9, and slept all the way until morning. And when I woke up - the pain was totally gone. It was so weird - just 10 hours before I'd been in excruciating pain, and suddenly, it was just gone. Hang in there OP!