I've been dealing with this constant pain in my ribs, on both sides, but it's worse on the left. It's been going on for the last couple of years, and the pain comes and goessome days it's really bad, and others it's not there at all. I'm 31, weigh 104, and I'm about 5'7". I'll admit, I don't have the healthiest lifestyle, and I used to smoke. I've done some tests like a 2D echo, a stress test, an endoscopy, and a chest X-ray, and everything came back normal. My blood pressure is a bit high, and I have thyroid issues, but all my other blood work looks good, except for some cholesterol issues. I'm just trying to figure out what might be causing this rib pain. Any ideas on what could be going on or what I should do next?