Hi. Thanks for your query. Noted the history of having abnormal tingling mainly over chest and lower body, sometimes in arms and head, very fatigued, reflux type thing happening with certain foods, sometimes feel bloated and gassy, wants to know whether food allergy can cause this... Yes, food allergy can cause any sort of symptoms and the tingling over the body as explained by you can be due to allergy. As also the bloating and such things in intestines can be due to the same reason. I would advise you the following: First of all, write the foods, additives and beverages that cause such symptoms so that you can strictly say no to all such allergens. Prevention is better than cure, hence this suggestions. Also get a course of oral steroids and antihistamine to tackle the allergy. Once you stopped all the foods and beverages causing allergy, you will be alright. Also get the blood tested for diabetes and such diseases. Stool tests to see if there is any infection and intolerance.