Had mine late Sat, fine all day Sunday just a slight sore arm, but come Monday around 9.30am I hit a brick wall, tired beyond anything, hot/cold shivers, aching arms legs, slept a lot, same Tuesday tired achy with a very sore neck on the side of my jab, arm felling worse and swollen.
Wednesday felt fine got on with housework etc. no problems, just a sore arm.
Then Thursday back to feeling like I hit a brick wall of fatigue, slept a lot, no appetite which was a good job as I was also vomiting I have not had any headaches at all though, but too paracetamol and hot lemon/beechams.
Today its still early, but had a hot drink and dont have such a 'fuzzy' head, fingers crossed.
Hope those who are still having after effects feel better soon