Hi, I Am A 42 Year Old Male, With No

Hi,

I am a 42 year old Male, with no history of smoking or drinking.
i have bad eating habits, but those have not affected me much in the past.
I currently am in day 5 of severe diarrhea. the stool is by now completely liquid and transparent. it essentially looks like urine.

i administered activated charcoal yesterday 500mg with no effect. colour and consistency did not change. I have since developed upper back pains which indicated fecal compaction (15 years ago)
i took a fleet enema orally to remove a possible fecal buildup , but that also had no effect.

What should my next step be ?