Hello, I've been running LGD 10mg RAD 20mg AM for 5 weeks now and a couple days ago I started to notice some pretty bad lower back pain. I started drinking more water but the pain would not go away. It's pretty much radiating all day long sometimes on the right side, sometimes on the left, and sometimes on both sides. I can also notice pain when breathing in deeply. It does not affect my workouts at all, since the pain is rather noticeable when resting. I'm not sure what it could be, is this something common? I can't find much info.