Chronic UTI, Seizures, and Back Pain: Seeking Answers

I have had chronic uti's for 14 years now and started having killer cramps and pelvic pain that comes and goes and bladder spasms about 5 years ago. I've been to multiple doctors who told me it was just a UTI or overactive bladder but then the scariest thing happened a week or so ago. I had a killer cramp then saw a flashing light then had a seizure. I've been having seizures for over a year now. some are very violent. one lasted three hours and 8 minutes. I also started having back pain a few months ago and have a gut feeling something is wrong. do you think my these symptoms are linked to my seizures in any way? plus I quit drinking cold turkey over 3 months ago and have not used any other substances since then either but Ive had 3 seizures in the last month despite this and I live alone and I don't know what could be causing my seizures or my other symptoms or whether they could be linked in any way or not. I lost faith in pills though because I struggle with anxiety and major depression and every pill I've tried has had debilitating side effects or adverse reactions that only make my anxiety and depression worse. this is why I'm not on any medications for that or for my seizures.