Hello, I have been in treatment for Lyme for a year. Recently changed to a new LLMD who thinks my remaining symptoms point to Bart. I had terrible low abdominal pain, near my lower lymph glands, neuro stuff, insomnia, sweating. etc. He put me on 500 mg of Levaquin along with 600 mg of Omniceff per day. I started the Levaquin 13 days ago and by the second pill felt things start to change in my lower abdomin, like a rolling feeling, twinging, etc. and then it to become more in my bladder, feeling like a have a bladder infectio with a lower backache. My last visit to my LLMD last Monday, I mentioned it and he said he thought it was probably die off in my bladder from the bart. He did do and urine culture which came up neg for bacteria. Some days are worse than others with this. Today it's pretty bad. I wondered if anyone else here has had symptoms like this and if maybe I should be worried that this Levaquin dosage is too high...or just tough it out like I have so many times in the past with this Lyme treatment. Note: baldder issues weren't part of my original symptoms with Lyme, although I have had a overactive bladder for years. Frequency going type stuff. Could I have had bart living in my bladder for a long time and this is a Herx going on now since I started Levqauin??