Hi Greg
We are all here to help support each other and always remember you are not alone in needing to wear a diaper to manage a bladder issue. Im guessing you have seen an urologist or your doctor if not its a good idea to make an appointment as IC issues are caused by underlying issues and some can be life threatening.
Acceptance of the need to wear and use a diaper is hard at first but it does get easier over a short time especially once you realize no one notices and the stress of will ai make it to the bathroom is gone and when your bladder releases unexpectedly your protected and you can trust your diaper to do its job.
I wear Betterdry diapers 24/7 and they have proven to be a diaper I can trust, you could also try incontrol hybrid diapers as they have a velcro type tape so you could untape your diaper to use the washroom then tape with out damaging the diaper this will give you the protection you need and the option to use the washroom when you can.
for me its now been 6 years of dealing with a bladder issue and taped diapers and I have long since given up the bathroom runs to pee since I never make it any ways and I have no regrets in my decision to simply use my diaper to pee I would love to be out of them again but at this time its not possible and I have fully accepted my need and I am at peace with it.
Just keep reminding your self its a medical issue and there are worse things that can go wrong with our bodies then needing a diaper to keep our pants dry and your life really does not change all that much except when you travel and need to take supplies with you
hope you can come to terms with needing diapers and thst your urologist can figure out the issues and find an alternative but if not we are all here to help you get through the rough times