It wasn't even a bad reaction. He says he felt quite sick for a few days, which is expected since the whole point of a vaccine is to promote an immune response and that's also the part that makes you feel sick when you catch a real infectious disease. Sensible people will know this of course, and it's clearly stated by reliable sources. Is Musk just trolling at this point? That whole tweet reads like trolling.
(He also mention a relative who had an actual side effect of concern, namely myocarditis. That looks more legit at first glance, but guess what's a common side effect of COVID19 itself? That's right. The balance of benefits vs. risks is overwelmingly on the side of vaccine, at least if COVID19 remains endemic as it's expected to.)
I hate the stupidity of this bullshit. Of course catching sars-cov-2 is going to provide a broader profile against which your immune system can develop matches: the vaccine only has the spike, while the virus has the spike plus other key proteins and signals. No shit Sherlock! BUT AT THE SAME TIME the virus is orders of magnitude more dangerous. The only people playing pretend are the ones who keep FUDing about the vaccine.
Remember when we were assured that the vaccine’s spike protein would remain mostly in the injection site at the shoulder muscle or local lymph nodes? And only for a very limited period of time? This was by the experts.
5 vaccine deaths for young, prominently sporty males.
500 real covid deaths. 5000 dead "with covid".
3 covid deaths for people under 50.
0 (zero) covid deaths for non-obese healthy people under 50.
Addendum: There is now 3000 annual "mystery deaths" more. Experts of Twitter disagree if this because of unpopularity of the 4th booster, or because of popularity (90%) of shots 1-3.
The more he opens his mouth, the less I think of him. And I liked Tesla, and PayPal ... Musk, though. Jeez.