But your decision to not take flu shots sounds totally reasonable given you apparently get a bad adverse reaction every time.
You therefore belong to that group of people whose health is too weak to get vaccinated, I guess.
I hope you won't catch the flu, and will keep getting vaccinated whenever I get the chance since I'm lucky enough that I've never felt any illness from any vaccine (but got flu once and had to stay in bed, half unconscious, for almost a day).
It definitely has nothing to do with "not caring about others". What a malicious human being you seem to be. The vast majority of people just aren't that worried about the flu. It's a natural part of life for most people. For old people and immunocompromised it's relevant, and for them it's obviously their choice to defend against it - and I've started recommending elders in my community to get flu shots (if they want!), even though it only has around 40% efficacy.
Vaccinating kids or young people? Wow. I was sacked for 2 days both with my first and second jab. Next one I'm just gonna let my immune system ride it out. Arrogant people like you convince me.