M, 42, w/back tension & spasms so I often do trigger point therapy on myself, including sides, abdomen, chest, etc. Sometimes I massage my abdominal area and a few weeks ago noticed something I've never felt before. It feels like a ligament or tendon (but I don't know). It's under my skin (and perhaps fat and/or muscle). I can feel it with my fingers, but to feel it clearly I normally need to use lotion. The part I can feel runs from the bottom of my left ribcage, approx.