Talk to Gastroenterologist on Abdomin Pain After Foods Plus Sinus Problem

have long-term digestive issues including constipation, gas, and bloating. After eating certain foods (especially gravy and some fruits), I develop abdominal discomfort followed by sinus pressure and nasal pain within 20–40 minutes. I also have diagnosed weed pollen allergy, but these nasal symptoms seem related to eating rather than environmental exposure. When my digestion feels better, my nasal symptoms also reduce. I am confused about what is actually happening and whether my main issue is gut-related or allergy-related. Could this be a functional gut disorder (like IBS) triggering sinus symptoms? What evaluation or treatment would you recommend?