I have a pretty bad headache. Had it with varying intensity since my second dose of AZ on Monday evening. Not shifted completely. Tbf I had a lingering headache before the vaccine but it seems worse now. I seem to wake up fine but it builds up during the day. It feels like a tension headache which I do suffer from but it seems a lot worse today.
Headache is a side effect. Headache is also a concern the gov website says from day 4? But what if you have a pretty intense headache less than 4 days after vaccine? Do you need to be checked out or not?! It's been 2 nearly 3 days.