I have been eating peanuts for all my life almost every other day. Now I strangely developed fear of nut allergy .and also fear of prawn allergy. After reading that some may develop allergy to foods that they eat earlier with out any problem. Sir what arr the chances of getting allergy now. Is my fear irrational? I no known food allergy. Except that 2 months before after eating chicken I developed some strange itchy feeling. Which lasted for about 10 mins. Nothing happened after that. How ever my skin becomes red and my knows feels cut. With dust in shelfs and books. Also for the past 5 months only one nostril is opening alternatively. Now I developed fear for eating .what should I do because I do have food allergy but I am getting fever for that.