I think I pulled a muscle. The pain is on my right side, in the middle of my torso, at the bottom of my rib cage. It's painful to cough, and perform daily activities. I was working out intensely last week and I'm assuming that's what it's from. Few questions I have:
1) Is this common?
2) What exercise probably caused this? I did a lot of chest exercises last week, flat bench, flat flyes, incline bench, incline flyes, decline bench
3) Could you guess the specific muscle I pulled?
4) How long should I rest before I start lifting again?