Back in the 80's we went to Portugal and we had to have a vaccination for Cholera (I think, I was only 10 so can't remember the exact vaccination). What I do remember was feeling like shit a few hours later, light headed and ended up passing out in the evening whilst in the kitchen.. Woke up to my younger sister standing over me wondering what had happened..
That's the last vaccination I ever had and don't ever intend to have anymore.