With all due respect to your 'research', the warning label of Aspirin (
https://optiphar.com/uploads/products/leaflets/112863.pdf ) is eight pages of extremely small print with problems ranging from mild to so horrifying you wouldn't wish it on your worst enemy (including severe internal bleeding, acute kidney failure and gout). Side-effects refer not to things
caused by the medication, but effects
experienced by people using it. The rarest category is typically 1:10000 or 1:100000. Establishing a causal relation between events so rare is by definition pointless.
If you had done actual research you'd have analyzed the risk of contracting measles, the possible health hazards of it, the prevalence of each possible symptom and compared that with the actual prevalence of the various health risks of vaccination. You did not, because you aren't trained in it, and don't have the skills, knowledge or insight to even begin doing so. You simply do not know
anything about
any of this. You didn't 'do research', you saw scary words in a document and came up with a random conclusion based on ignorance.
Allegedly? Lol, that is like the #1 conspiracy theory word. Either back it up or get out of here. Its a never-ending story of vague claims, with zero support, being presented as absolute truth by people with no experience, training or skill in the topic involved. The biggest issue is not the lack of understanding, but the inability to consider one's limitations.