Hello I'm also 23 and in July last yeAr I with diagnosed with stage 3/4 extensive endometriosis and interstitial cystitis (as well as a couple of other things). I have found getting my head round the two diagnosis really tough as you will know they are both incurable. During my lap my consultant surgeon also did a bladder distension (one of the ways to diagnose IS) and this actually has provided some relief since. She also wants me to take low dose anti depression tablets which would act as nerve blockers however, this has made me quite uncomfortable as I think that taking them can be like opening a can of worms so have refused that method of treatment. I follow the endo diet (if you aren't sure what that is google endo-resolved) and I have found that this has also given me relief for my bladder symptoms. Cutting out a lot of sugar, caffeine, anything too acidic such as fruit juice from a carton has helped. I also think that cranberry juice from a carton is a bit of a myth for us IS sufferers as it has additives and sugar added to if that do more harm than good, freshly home squeezed is ok. I have a juicer and have a fresh vegatable juice every day and since I started doing this I feel a lot better overall. I have a really good diet (usually although I have the odd chocolate pudding!) which has helped with the endo pain. I tend to find that if one flares up, the other one does too so I'm obsessively mindful of what I'm doing to my body.
Condoms, strong perfumed shower gel, non-breathable tights/ underwear can also flare up my IS so I have begrudgingly had to have a full life overhall!
I think the worse thing for me is that I can't go anywhere or do anything without planning for either my endo or IS to flare up so I feel like I have to take a hot water bottle and pharmacy with me everywhere I go!
What do you do to help ease your symptoms? Xx