Almost all my GI's over the years have had this same unsympathetic attitude, especially when it comes to pain. They tend to measure disease activity purely by endoscopy, amount of blood and bowel movement quality. Anyway, I had no pain during my long med-free remission years and yrears ago but in the past 9 years non-stop flaring and constant pain even in 'remissions' (nothing more than veyr mild visible inflammation, normal BMs, and occasionally next to no meds- because I can't tolerate any 5ASAs).
Not that I suggest you get off any maimntenance drug that keeps you in remission (unless it was replaced by something else and/or unless it actually and clearly worsens your UC as unfort. for me is my case) but it is possible that the Asacol is causing your pain- you'd have to cautiously experiment yourself.
Anyway, due to constant pain and frequent need to boost pred, I am banking towards surgery myself, so maybe you'll see me over at the j-pouch site suebear mentions- it is a great and sympathetic sight incl. for those like you and me who are reluctantly shifting over to that view. In the meantime, I hope you solve the quality of life issue.
Pancolitis dx'd 1986, full med-free remission 88-97
Flaring or simmering ever since
10 20 mg pred, 100 mg Imuran
Probiotics (mainly Primal Defense)
Turmeric/circumin, various vitamins/minerals,
Low-carb version of Specific Carb Diet