Mid & lower back pain from last 5 months

Hi I am suffering from on & off severe back pain mostly on my mid back two sides and lower back right side from last 5 months. This mid back pain happened before in 2019 & 2018. But after taking medications & Physiotherapy it went away. This time I visited doctor, chiropractors, took Physiotheraphy, had lot of medications but pain remains as it is. I even did x ray & MRI but my doctor said it is completely normal. I have high uric acid around 9.4 & taking febustat 80 mg. This is very depressing as even after doing exercises correcting my posture pain is as it is. Can anyone please help me? Also I am having pulmonary TB medications. I am very clueless. Visited 2 doctors but they also said they can see nothing in MRI or x ray report. Had powergessic, miofree, zix mr od. Nothing helped.But I am really in pain. And want to get rid of it. Please help.