Depression Support Group
Depression is a real and debilitating condition that is often misunderstood by family and friends. Its meaning can range from a prolonged period of sadness to an actual mental illness with specific symptoms. Find and share experiences with others who are going through the same struggles.

But of course that means I think I know everything about everything even when i haven't a clue, so forgive me if I'm trying to teach you to suck eggs.
I'm going to bed, I'm 100% NUTZ!!!
https://patient.info/health/bile-acid-malabsorptiondiarrhoea-leaflet
"Colestyramine is the medicine most often used and is usually very effective."
The article is somewhat 'optimistic', in my opinion.
You need to see a doctor (preferably a gastroenterologist) and get this evaluated and treated.