Was I drugged or was it a coincidence?

[Tiahb]

I went out last night and was having a good time, I normally carry an epipen for my anaphylactic allergies but haven't had allergies for two years, I'm only Allergic to latex and bananas. I poured my own drinks because we had bottle service but then had to make a quick call so I handed my drink to one of my girlfriends and went outside, when I came back she had gone to the bathroom and had left my drink on the table I didn't think much of it and continued to drink my drink. 3 minutes after the first couple of sips I started feeling dizzy and could feel my allergies coming on strong, is it possible that I was drugged and allergic to whatever was put in my drink or was it just a coincidence? Although I had been drinking the same drink the whole night and pouring it mySelf I made sure I didn't consume anything I was allergic to. I still feel nauseous and have been having headaches all day but the swelling went down.

[Paxiled]

You said drinks -- how many drinks?  Because this sounds like simply getting drunk and then having a hangover, at least according to what you've posted here so far.  There might be more.