Just going to revive this because I had a MASSIVE bruise pop up on the inner side of my knee (actually opposite to where I have pain) once I started walking more to confront my TMS. I wasn't hit nor did I suffer any trauma to the area. It decided to appear on a very stressful day and as I increased my activity after a very long time. Activity literally being a slow walk. Could be symptom imperative.
Leaving a picture as well, maybe it will help someone else who's wondering if TMS can cause this.
Diagnosed by the doctors as a minor lateral meniscus tear and IT band syndrome btw. 2.5 years of pain, 10 different specialists, endless therapies to no avail. Severe psychological childhood traumas, supressed rage, type T personality, I am a textbook Dr Sarno's patient. Definitely TMS.