i currently am feeling: burning pee, painful vagina, back pain, headaches, and a late period
i have not had sex
Be sure you are not pregnant. The late period can be caused by other things. You need to be tested for urinary infection. pregnancy test. You need a pelvic exam by a gynecologist & sonogram. I would start there.
You should seek medical care to make sure you do not have a urinary tract infection or other issues needing a prescription or attention.