I have asthma, I have had a DVT 8 months ago with no apparent reason (no inactivity, not overweight, not a smoker, no family history, no hormones), I've had rib pain for the past 6 weeks, (6 weeks ago I had a C-xray, Ct Scan and blood work, all negative for a PE). last week I had more blood work (all negative), the past few days my rib pain is getting worse, coughing is getting worse. I'm not sure if I'm getting a cold or if it is more serious.