I use tons of coconut products, but a person must proceed with caution as tree nuts (including coconuts) are a common allergen or irritant.  I personally have never made any direct correlation with coconut and gut issues.  I use coconut creamer or oat milk in my hot tea drinks because cow milk definitely causes irritation and inflammation for me.  I also drink coconut water because it has a lot of electrolytes.  I usually mix it with home-made veggie juices (carrot/celery and carrot/beet/ginger/turmeric/lime are my favorites) to dilute and add a bit of sweetness.  I'm not crazy about drinking coconut water on its own unless it's really hot outside.  I sometimes make almond flour cookies that have a lot of coconut oil (I also don't tolerate wheat well) in them.  The cookies are great (not very sweet, great breakfast, etc.) but I didn't find them to be particularly therapeutic.  If you try using coconut medicinally, I'd be interested to hear what happens!

I drink coconut water for rehydration and have started using coconut sugar but other than that, not enough to give me any sort of positive or negative results.