Not from the covid shot...but similar situ.
Watching the news yesterday...they were saying time is closing on getting the flu shot for this season. So...I went to get one in the afternoon.
The gal had the needle almost in my arm before she said..."You're fortunate...you qualify for the enhanced shot"
I told her about the two day headache I had from the last enhanced one. She said that just means you already have a good immunity built up.
So why should I get the shot then?
Woke up at 3am today with a splitting headache. Eating aspirins like candy.