My Friend asked about saftey of vaccines maybe it's his health before the vaccine

the astrazenca one have you had any side effects or is it the masking wearing, or stress or both maybe its not the vaccines i looked up 4 of the vaccines nothing bad in them.

my dad says that there something that will make the blood flow through the body from heart a heart from the heart??? and also i think there may be brain surgery to form capillaries if the brain isnt making new veins. I authorisized possible future surgery.