I'm triple-jabbed now (all 3 Pfizer) and had my booster last Tuesday (23rd Nov) and have been fine so far, despite a bit of soreness at the injection site for about 2 days after all 3, including the latter.

I have been feeling a bit sniffly on and off over the past couple of weeks, even before the booster, but that's probably caused by other things such as allergies, changes in weather, ordinary seasonal 'bugs', etc.