I'd see a good physical therapist. I used to have SI pain - couldn't even put a leg down sometimes. One visit to a good PT, he saw the problem, taught me some stretches & exercises, and no more SI pain May you be just as lucky.

BTW, Aleve is banned in Canada because it causes heart problems. My Dad was taking Aleve every day for his back pain. He started having heart issues he thought were unrelated - forgot to pack Aleve when they went to Nova Scotia, and was surprised not to find it on the shelves there, and a pharmacist explained why - it causes heart attacks. After some research online, they discovered this was true. His heart issues disappeared, we think forgetting to pack that bottle maybe saved his life.