stomach acid and diarrhea

i have noticed at the morning when i take my steroid pills thisafter i have always horribbke diarrhea attack about for 2 hours...most of time my stool is hard but this morning diarrhea is liquid...
on the last week i forgot to take my mornig steroid pill and i did not have any morning diarhea attack...a i tried it again i did not take the steroid pills( i used suppository instead of pills) and morning diarhea much much less...
normal after morning i have only 1 -2 stool...and on the evening when i eat to much, and eat lot of sugar i have again similar liquid diarhea...

as i see this kind of diarrhea because of the to much stomach acid? i dont know...
or why?

have you similar experience?
what do you think?
if i have flare then usualy it causes total other symtoms...

I have heard that using steroids if you have a pathogen or infection can make symptoms worse. Have you had stool tests to rule out pathogens?

Not a good idea to suddenly stop oral steroids. What dose are you on?