Could you tell me how long after the Pfizer booster in June did you experience a reaction? I got the last Pfizer booster in April and about a month later started having twitching in left hand. This was intermittent for a couple of months and then I started having muscle spasms in different parts of my body. Now my right thumb twitches from time to time. I know my symptoms are not as serious as yours but the common thread is the booster. I have tried to identify other possible causes but no success so far. Sorry you're having to deal with this.

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