48 hours after Moderna booster I am back to baseline with an arm which feels a bit bruised. Was a nasty 48 hours though.
I should add my baseline is moderate to severe ME similar to where
@TigerLilea and
@Kalph are at (as above) ever since suspected COVID infection in Dec 2019.
I have been completely housebound since then due to bad PEM for trivial exertion and have had a series of frequent migraine headaches related to PEM + fluctuation + food intolerance (high protein foods except beef) at least once a week which leaves me feeling out to lunch much of the time.
I have the luxury of blaming the virus for these and the vaccines have not made much difference either way, except for the short term affects which have been quite unpleasant for first time with AZ and Moderna though the second AZ and flu jab were very mild.
I have read that having COVID and then Moderna leads to a worse reaction to the first jab but less to the second, whereas if you have not had COVID the second Moderna is reported as worse than the first.