Try an elimination diet.
I have found that by doing either the dissociated diet (separate your proteins and carbs into 2 different meals, eat your veggies with either group, your fruits in the morning on an empty stomach or up to 1/2hr prior to a meal and avoid dairy products) or the elimination diet (1-3 days of fruit and fruit juice fasting then slowly introduce foods (and food groups) one at a time.
Keep a food diary going while you do this an include noises, liquids consumed with meals as well as meds.
That might give you a key to what works or doesn't work for your body.
Sharon