I have pain in my lower back/abdomen regions and it seems to get worse after I eat/drink anything. I have discomfort after going pee?

Get evaluation. These symptoms warrant a proper evaluation, because there are many possible causes, and some of them are serious. A urinalysis will reveal if a bladder or kidney infection is involved. A gynecologic exam is needed to look for infection or other causes in your uterus or ovaries. Good luck.