One-sided si joint pain, spinal probs ruled out, all tests (x-rays, mris, blood work) negative. Triggers: walking uphill, hamstring stretch. Help!?

PT. Your age, tobacco use, cholesterol and cardiac and circulatory status to be brought into consideration. Family hx of arthritis is important. Being one it may be because of old ligamental injury or disc / entrapment related.Pt wiill help if local steroid is used.