Lower back pain

Hello since I started with my symptoms i had what seemed to be a UTI and i always had pressure in my bladder like if I had to urine and it seems like I didnt finish urinating now i started on Azythromicine atavaquone and 2gm Is ceftriaxone iv and I feel that my symptoms are flaring up but also im having a lower back back pain I get concerned if its the anitiotics beating on me or its lyme symptoms?

I think it could be either, or both. Drink plenty of water to keep things moving in that system, and go easy on your kidneys. When I have bladder pain (stupid Lyme) I take a urine test at home to ease my mind about a UTI or kidney infection (but I have gone to the ER anyway, occasionally, when pain has been persistent or overwhelming). When I have kidney pain, I take dandelion and hydrate extra with herbal teas and unsweetened cranberry juice, which seems to help. The endotoxins of the dead bacteria being ushered out of your body could be irritating your urinary tract, so if you already had symptoms in that area, it makes a lot of sense to me that they would worsen for a time.