Disturbing symptoms in spine, neck, shoulder, 101 degrees, and can't sleep?

I have a 101 degree temp. I have not had a temp above 97.9 for at least 6 years. Last time I had a fever my appendix burst, so I feel something is wrong, yet the doc at urgent care said its probably fibermyalgia and take muscle relaxants. NSAID is not helping pain.

Pain in back of head on both sides just above my neck. Hearing coming and going for a week. Horrible spine pain/neck pain, keeping me up at night. Can sleep only about 4 hours for past two weeks.

I have sinus infections and headaches off and on for a couple years. antibiotics don't clear it up. The other weird thing is I thought I was having bad acne for a couple months, but I notice they are red at first, then turn dark red or brown, but they are not raised like acne. Keep appearing around my jaw line.

I've had xrays, physical therapy for a couple weeks, having trouble completely emptying bladder. Need to sit a while.

The blood test a 2 months ago flagged my red blood cell count. Doc said normal according to other counts associated (size and shape of cells normal). I also have high blood pressure.

My PCP was going to order MRI, but he is out for a week. The urgent care doc seemed to dismiss everything. I can go to ER and get MRI and tests right away, but my son has scheduled surgery tomorrow. I don't want to waste docs/hospitals time if this is all separate issues (sinus infection not anything to do with pain in spine.