my friend has developed food allergies, she gained 20 pounds in 3 weeks - severe swelling,  allergic to peanuts, barley, buckwheat, carrots, corn, kidney beans, chicken and tuna.  Gluton intolerant  and her body produces to much candida so no sugar, no high sugar fruits, bananas, cantelope, strawberries, grapes, watermelon, honey due.  Chemical intolerances so only can eat cage free eggs with no hormones, and organic tomatoes and allergic to cinnamon.  Any ideas what caused this and what to do about it?
Any food protein can start suddenly reacting to body protein to get galleries in my experience you need to get blood serum tests for specific antibodies for foods you want to eat either you can with Chat Doctor.