Pam
Are you talking about Interstitial Cystitis?
Several others on this board have IC. I'm one of them. http://www.ichelp.org
Lyme can cause IC and yes, the bullseye can come back.
Hope you find a good dr soon. You're lucky to have a few choices!
http://flash.lymenet.org/ubb/Forum3/HTML/004140.html
I tried to do a search on IC for you. It has been discussed recently. Right now the search feature isn't working.
Later on, go to the little blue word "search" in the upper right hand corner of this page and type in whatever you want to search.
Welcome! 
Tincup's Links for new members
http://flash.lymenet.org/ubb/Forum1/HTML/009342.html
Dr. Joseph J. Burrascano's Guidelines http://www.ilads.org/burrascano_1102.htm
Rose's 15 Facts for Newcomers http://flash.lymenet.org/ubb/Forum1/HTML/011977.html
Camp A and Camp B http://flash.lymenet.org/ubb/Forum1/HTML/021395.html
Abbreviations for Lyme-speak
http://flash.lymenet.org/ubb/Forum1/HTML/020494.html
Making the most of your LLMD visit
http://flash.lymenet.org/ubb/Forum1/HTML/020605.html
Success Stories http://flash.lymenet.org/ubb/Forum1/HTML/022173.html
Western Blot explanation: http://flash.lymenet.org/ubb/Forum1/HTML/022767.html
More info: http://www.ilads.org/
Lyme Wars http://www.wildernetwork.org/Lyme_Wars.html
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oops!
Lymetutu
But if you run a urine culture for a UTI it will be negative.
Zithromax has always worked for me.