Should I get a second opinion I think I have a kidney infection?

For four days I was having fever on and off chills shaking weakness and lower back pain. Last night I took an at home urinary trac infection test it showed up positive so I went to the urgent care. She said sure enough I had one and put me on antibiotics twice a day for a week. I told her that this has happened to me before twice in the last 9 years and I was hospitalized for it. I get uti but NO pain during urination so I never know I have one until I start getting fever. I've been on the antibiotic now for 24 hours but keep having bouts of fever and chills and weakness/back pain. Then it goes away I start sweating and I feel like a million bucks then a few hours later the chills start again. Should I give the antibiotic another day before I go back to the doctor? The doctor told me she doesn't think it's in my kidneys but I find it odd that I am this weak and in pain with fever and chills on and off all day for the last 5 days now all from just a uti. Again I've had kidney infections in the past. I just don't want to go back complaining to soon I've only had antibiotics for 24 hours now. Thank you.