The week before my colonoscopy

Hey there, fellow travelers! I hope all are as well as we can be in this group. Quick question. I am a chronic pain sufferer, and I'm having my 1st colonoscopy. I tried a couple of months ago, and I had to cancel the morning of the procedure because I became so ill (hyperemetic) from the prep that I vomited and had bowel clearing going on for 4 days afterwards. After a week off meds I was miserable as I couldn't keep them down, then for almost another week. I like my gastro and she's given me Zofran to take and new prep but do you all always go off all meds for the week before? Tylenol and the Gaba help but nothing works like the anti inflammatories and they want me off b/c bleeding of course... Thoughts? She knows I have chronic pain...