Sidestepper, Now you know what's going on I hope you've ended the self-blaming.

Yeah, there are medical prodecures and medicines that can be triggers and I don't know why you weren't warned. Maybe it's such an individual thing of who will react and who won't that T's are reluctant to say. I just figure that whenever I receive a new med or procedure and something goes off that it's the new whatever to blame. Significant Other calls me The Side Effect Queen. You may be supersensitive to any new procedures. Have you talked with your T about the unpleasant experience?
I hope this finds you in a better place. You take care.