The document discusses the hidden causes of hip pain that are often misdiagnosed. It explains that joint pain can be caused by osteoarthritis or rheumatoid arthritis, but for many patients the real cause is tendonitis from trigger myositis syndrome (TMS). TMS is a condition caused subconsciously by the mind that doctors often mistake for other conditions like bursitis, tendonitis, or osteoarthritis. Getting properly diagnosed with TMS is difficult because it remains unknown to most medical practitioners.