Hi...I would say that if a small amount of stool or just bile is mixed in with a larger amount of mucus, it'll change the colour. Have you been taking digestive enzymes? Have you been having an excess of gas as well?
With IBS, some produce a lot of mucus. Stool that's not formed would clearly mix with the mucus giving it a different colour.
With the pinkish colour, I'd say that's blood if you can't trace it to a food source.
Are you expelling only the mucus without stool? How many times a day are you going?
Are you taking probiotics?
Are you still on the suppositories nightly?
You should/could consider to start a good fibre supplement to help "absorb" the mucus if your food intake doesn't have enough.
Just a few thoughts/questions about it.
*Heather*Status:mini flare June 23* 6asacol daily+ Salofalk (tapered every 3rd night)
~diagnosed January 1989 UC (proctosigmoiditis)
~5ASA: Asacol + Salofalk enemas (increase for flares tapered to maintenance)
~Bentylol (dicyclomine) 20mg as needed
~Probiotic 2 (Natural Factors Protec) + 1 (Primadophilus Reuteri) at bedtime
~Natural Factors Multi Digestive Enzymes with supper
~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 !!!