I Have Been On Macrodantin For Five Days . I

I have been on macrodantin for five days . I have no more burning when urinating but an uncomfortable feeeeling in my very low abdomen and an extremely low backache. I am supposed to take take it for the rest of the Memorial Day weekend since doctors are not in office until Tuesday. Do you see any need for concern that I am not free of symptoms....no fever, no blood in urine, etc.