Digestive issues and weight gain~~

I have always had a very slow metabolism and I have always had severe digestive problems. And I have no idea if this is related but I also have unhealthy teeth and gums.

Doesn't matter what I do or don't eat, or how much or little, whether I do or don't diet or exercise. I either never lose weight or I gain. And my digestion is null and void.

I have dieted, done cleanses of all kinds, took supplements for parasites, laxatives, tried exercise. I give up after while because nothing changes and not one pound is ever lost.

I feel tired, have all kinds of issues that are embarrassing due to the digestion problem and feel tightness in my chest often.

I am female, 52 years old and really frustrated. If anyone can offer some ideas I would love to hear them.

And thanks.