Everything that I've read connects bladder issues with Bartonella - have you been evaluated/addressed this infection? Just trying to make sure you have covered all the bases for what's causing the issues.
The ACV may have been hitting a yeast infection? I've heard of/seen some pictures of things like you talk about
from yeast. Just a thought.
You can see what some others have done to help their IC in this thread:
www.healingwell.com/community/?f=30&m=1401581 Here's a blog post from a LLMD explaining what he has found to be helpful for Bartonella/IC:
lymemd.blogspot.com/2015/03/what-is-bartonella.html I know how miserable IC can be and I hope you find something that will ease this for you soon!