I say get the flu, be sick for awhile, let your immune system do its job. Unless you are in a risky demo (ie old, sick like Anfkid, etc) don't worry about it. Get the flu shot, don't get the flu shot, who cares. All this hype over vaccines and mystery illnesses, trackers, govt control is getting out of hand.
the vast majority of the time someone has the flu, they have a cold anyway. When you get the flu, you know you have the flu.