Hello @paulhernandez and Welcome to Mayo Clinic Connect. I know from personal experience what constant diarrhea can do to your life. My neurologist thought it was a reaction to my immunosuppressant medication, but a gastroenterologist said it was pancreatic enzyme deficiency. Anyway a colonoscopy was done which did show the pancreatic insufficiency. So now i take medication with every meal.
I added the link to the Digestive Health Support Group where you will be able to meet other people with a similar problem. Ask all the questions you want of the members!
https://connect.mayoclinic.org/discussion/constant-diarrhea/
I would strongly suggest that you find a good gastroenterologist before the diarrhea causes you to loose too much weight.
Can you ask your primary care doctor for a referral to a gastroenterologist?

Bless You. Have you tried over the counter Imodium? It works great for diarrhea. Praying as this has to be miserable for you.

Feel very sorry for you, this has happened to me-mine started when I started taking Magnesium supplements because I have a huge Mg deficiency, I still take an Immodium tablet with breakfast every day so I am suggesting you start on these, you can purchase them over the counter but my Doctor prescribes - good luck- feel for you!