Think i have bad uti- fever, back and tummy pain, pain when peeing. what should i do?

See your doc ASAP: Your symptoms are not just simple uti, which generally mean a bladder infection. It is more consistent with a kidney infection. That needs to get treated with antibiotics right away to prevent it spreading into your bloodstream leading a much more serious infection.

You should see a doc: If ou have a UTI that is causing pain , esp in your back you could be developing a more severe form (pyelonephritis- the infection extends to the kidney). You should be taking antibiotics.

Get checked : The most effective treatment for a urinary tract infection is an antibiotic. I suggest getting a urinalysis and then treatment.