I’m 2001, At The Age Of 25, I Had A

Question : I’m 2001, at the age of 25, i had a colonoscopy done and was diagnosed with a form of colitis, I believe they called it “patchy diffuse” colitis. I was prescribed Asacol for about a year or two (I unfortunately don’t have access to my specific records anymore). I stopped taking the Asacol and have had no symptoms for the last 13 or 14 years. I’ve never had another colonoscopy. Recently, however, I read something that made me realize that perhaps I should have been following up all along with colonoscopies, even though I haven’t been symptomatic and I never had a doctor tell me to. I mentioned this to my new primary care doctor and I have a colonoscopy scheduled for 2 weeks from now. But I’m very scared thinking that perhaps cancer has been growing this whole time and I guess my question (since I can’t get the doctor doing the colonoscopy on the phone or even an appointment with him prior to it) is: Is it possible for colitis to go away on its own? Thus decreasing the cancer risk? I’m just looking for some additional information; I don’t want to google this because that becomes a rabbit hole that I don’t often like to travel down.
Thank you.