It is scary, and you do need to rest. Anaphalactic shock can be fatal. I have the same problems...not being able to breathe and trying to remain calm just don't seem to work at the same time! I wouldn't go off any meds that have agreed with you so far..but do watch to see if you need a change in dosage. Anytime you have a reaction, your system changes.

Begin a list (if you haven't already) of medicines you are allergic to..when you reacted, (date) why you were taking the med, and what they gave you to counter it (that worked.) (I carry a typed full page of such information. I can't take any generic as they think I'm also allergic to the fillers.)

Take care! I'm glad you made it through. (((hugs)))