Hi Lisa, welcome to the forum!
Your doc's definitely done the upper series of proper testing/treatment, etc....and if in fact you do have inflammation in your colon, the doc will have to determine the cause.
He'll do biopsies, hopefully, he'll have you also do stool samples, etc....after which a diagnosis will be able to be determined.
Your symptoms sound a lot like mind did long before the bleeding started....I didn't have a GI, so my "then" doctor put me through a series of testing that I deemed a total waste of time.
Hang tough....it seems as though you're in good hands in order for you to find a diagnosis.
I do hope, however, the doc doesn't put you on prednisone for a first-line treatment.....if yes, ask about
5-ASA meds, oral and rectal....
Keep us posted as to the outcome.
*Heather* Status: mild flare enemas tapered to every 3rd night
~diagnosed January 1989 UC (proctosigmoiditis)
~UC meds: Asacol (3 x2 daily); Salofalk enemas nightly for flares & taper to maintenance
~Bentylol (dicyclomine) 20mg as needed; Ranitidine (reflux); Effexor XR 75mg(depression); Pulmicort/Airomir (asthma)
~vitamins/minerals/supplements; Probiotics....(Natural Factors Protec, Primadophilus Reuteri Pearls). @ bedtime
~various digestive enzymes as needed
~URSO for PSC (or PBC) 500mg X 2 daily (LFTs back to NORMAL!!)
My doc's logic.. "TREAT (FROM)BOTH ENDS" worth it !!!