Freeper lightman recommends tylenol with the second shot.
I recommend a light schedule after the second shot. Take a day off - it is as good of an excuse as any other, and better than some.
A significant percentage of people report feeling like crap for a while after the second shot -flu-like/hangover-like symptoms from a few hours after, to a day or two after the second shot.
Many retired individuals in our neighborhood. Most qualified for the vaccine in the over 75 age group. Many have taken the second shot (pfizer) and I’ve not heard of any complaints.
I appreciate the tylenol suggestion.