Recurring Fever with chills, body pain.

I am a 37 year old woman, married for 16 years with 2 kids. I have recurring fever in the evening with chills body pain since 5 days & pain in the lower abdomen since yesterday. I tested negetive for covid on Sunday. And a few weeks back I had an unsafe sexual encounter with someone. A day later when I bent down to pick something, I felt a shock in my lumbar spine (in the site of the epidural injection) and since then I am suffering from recurring severe pain in my left hip all the way to my left foot. After that I had normal periods (5d/27d). Now I have fever,body aches & pain in my lower abdomen. I am also worried about any STDs I might have contacted. I took tab Acemiz MR for my hip & leg pain for a few days and now I have been taking DOLO 650 whenever I have fever(37.7-39C).