Having intermittent pain under my left rib, have undergone several tests, none of which found a cause for this. I am 58, obese and have been diagnosed with Asthma, RA, Anemia, Ulcers and just recently Goiter as I have two growths on my thyroid which the biopsies showed were negative for Cancer. I will be monitored yearly as to the growths but wonder could my thyroid be causing me pain in my ribs? This pain isn't every minute of every day, sometimes it is sharp, mostly it "throbs" and is just painful. Sometimes it keeps me awake at night. I have had a chest CAT scan, an ultrasound scan on my thyroid, biopsies of my thyroid and a thyroid functioning test recently. The growths were found to be "cold". Asthma is well under control, RA is being treated with several NSAIDs and Methotrexate. Any suggestions?