I would think when it's out of the ordinary for past flares or fast and furious increase of symptoms such as pain and bleeding/diarrhea. There is always the chance it could be something else going on.
Some people will literally be on death's door before even admitting they should deal with symptoms and then can't get in to see their docs for weeks. The doctors will usually suggest go to the hospital. Desperation does play some part of it I would think....dehydration and nutrition loss can happen fairly quickly once the body can't cope with symptoms.
There are more factors involved I would think than just one day perfect, the next day all hell breaking loose.
*Heather*Status: mini flare Dec 28... tapered to every 4th night
~diagnosed January 1989 UC (proctosigmoiditis)
~5ASA: Asacol (6 daily) + Salofalk enemas (increase for flares tapered to maintenance)
~Bentylol (dicyclomine) 20mg as needed
~Probiotic 3(Natural Factors Protec) bedtime + 1 (Primadophilus Reuteri) occasionally
~multi-digestive enzymes as needed ....zymactive 3 - 5x daily
~Ranitidine,Pariet (reflux) Effexor XR 75mg; Pulmicort/Airomir (asthma)
~URSO for PSC (or PBC) 500mg X 2 daily (LFTs back to NORMAL!!)
My doc's logic.. "TREAT (FROM)BOTH ENDS" worth it !!!