Im sorry to hear you're not feeling well. I had these tests a year or so ago. Modern human torture if you ask me. I'm going to ask to obvious- any fever, vomiting, blood or other leakages if you get my drift? If not then thats good. If yes- call your doctor. If no, Have you tried tylenol a warm bath or a hot water bottle or heating pad on your back?
Now im not a doctor so use your best judgement. Try treating this like muscle ache and if you dont feel well, or have any concerns call your doctor. They get big bucks to answer these questions. Dont be shy. Make him earn it haha . Hope you feel better soon