@colinrfc29 Sometimes when we take antibiotics, they upset our intestinal system. And sometimes long term routines of certain medications [including antibiotics!] can lose their effectiveness, and a change may be needed.

Have you tried probiotics in some form? Healthy greek yogurt, with probiotics incorporated already into the product, or stand-alone probiotics, might help. It may take a bit to figure out what is causing the upset. Muscle twitches, fatigue, etc could all be by-products of dehydration that can come with the frequent digestive upset. And let's not forget about daily stress causing symptoms! That has been my experience.
Ginger