I always bleed but not too much. I just stick a band aide on after. But I have always been a bleeder with shots since I was a kid and all my tattoos I bleed with. My dads diabetic and with his injections he bleeds too

When I bleed, I think its because the needle hit a vein. This happens about once in twenty shots and its only a few drops.
I seen in your story you have flu like symptoms.
To avoid the flu like symptoms I take my shot and two 500mg w/PM pain relief at bed time and sleep through any side effects