Hello,my name is dr.Dorina Gurabardhi.I understand your concern.
Your symtoms see, to be related to an allergic reaction
Allergic reactions can vary from person to person and depend on the type of allergy
I suggest you to go to the emergency room if you're experiencing anaphylaxis
, even if the symptoms get better
Hope my answer was helpful.If you have any other question Ill be glad to help.