Flu shot experience varies too. The last several have been very low response, but the first few were a miserable couple days and I stopped getting them because certain misery was worse than a chance of misery that I'd never know if it was flu or not, because testing was inaccessible.
Last year I skipped the flu vac (I had a zillion for tropical diseases so I though come one not another one) and lo, I got a flu about every 4 weeks, so like over 6 the whole season. I'm on a way to get it this year.
Flu shot experience varies too. The last several have been very low response, but the first few were a miserable couple days and I stopped getting them because certain misery was worse than a chance of misery that I'd never know if it was flu or not, because testing was inaccessible.