I Had My Friday Allergy Shot As Usual. 10:30 I

I had my Friday allergy shot as usual. 10:30 I had lunch at 11am. At 1:30 my eyes started swelling shut and I have the most horrible heart burn. I thought I was having a heart attack. Still have pains. Took benedrill swelling is down very little. I have eating this meal before with out trouble. Could heart burn last this long and be related to my allergy reation?