Chronic constipation, IBS, weight loss

I've had digestive health issues as long as I can remember. Even as a kid. I was ALWAYS constipated. Now.. I rely on a morning coffee to make me go.. and if I dont have thatcoffee, I wont go at all! When I do go it's just hard lumps.. I can never just go on my own without stimulating it with coffee.. and I really hate coffee..

I've tried everything.. increasing fiber, I'm active, I tried drinking more water..

I also have trouble gaining weight because my stomach is ALWAYS upset. Nausea, lack of appetite, pain.. Its controlling my life.

I've been to so many doctors they all just tell me they cant find anything and that I have IBS. 😑

Has anyone experienced this or something similar and what helped u?