For years I’ve been having these side pains that feels

Patient: For years I’ve been having these side pains that feels just like a knife stabbing and dragging down the skin. It happens randomly and often. The only way to make it stop or ease is marijuana. Idk what’s going on and I don’t have a doctor. It happen more painfully and more frequently. I went to the hospital 3 times they told me they can’t find nothing and once they told me it’s cancer, or could be. Can u please help me!!! I just want the pain to stop

Symptoms: Pain

Doctor: