J.T.
I would go see a back specialist. Not to knock chiropractors, but sometimes they can get it wrong. Especially if they are treating the wrong thing.
I have both back and hip issues. The pain is very different for both issues, but both cause muscle tightness in the lower back, across the buttocks and hip arch. You could have a spinal issue that is pinching the nerve or some other issue.
Good Luck