Maybe, maybe, maybe is not an explanation for why the MAJORITY of people do not have those reactions.
If it were “system” to the vaccines’ formula, MOST people would be having those reactions, but that is not the case.
I think greater study will find (a) genetic reasons, and/or (b) reasons related to preexisting medical conditions, and (a) or (b) related to the spike protein itself whether from the virus or the vaccine.
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MAYBE:
(a) genetic reasons
(b) reasons related to preexisting medical conditions
(c) (a) or (b) related to the spike protein itself whether from the virus or the vaccine.
Please note that a, b, c, are also really GREAT maybes which is why I left one of my choices as maybe....
to allow for any and all additional maybes.
indicating that there are many things which could be possible which we do NOT KNOW without more studies.