Very good point Kelly! A little over a year ago I had not only my usual hug on my left ribs but it extended up to the center of my chest. I definitely went and had it checked out. The muscles were so spastic that it caused costochondritis. But, they kept me overnight at the hospital and did some cardiac testing just to be sure it was not my heart. Some minor things showed up in the testing, nothing that warranted medication at this point (PVC's). It's always better to get it checked out than assume it is from MS.