@nolalady
Not exactly what you were asking, but related.
I just read an article in my local French paper about how the UK has just dis-recommended the Pfizer vaccine for people with severe allergies. They started vaccinating the population 2 days ago. Apparently, two people that are already susceptible to all kinds of allergies got serious reactions right away upon the first injection. So they're saying that people that are subject to severe allergies should abstain for now.
Good news is you would know right away in the clinic if you have a problem. Bad news is, well, anaphylactic shock. My educated guess is that is is more to do with the formulation of the vaccine than the RNA itself, but it's impossible to tell without sussing out the components.