I am not at all sure what posters mean by the "booster" flu jab. I just went along and had the one relevant to my age group.
Do you mean by "booster", the one for over 65s?
I usually interpret booster as meaning an extra jab some time after the first (as with children and their standard vaccinations).
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Yellowmellow, sorry you're feeling so rough after the jab. I had mine yesterday (for over 65's) and after hearing so many negatives about it, was prepared for a kick back. So far, nothing...but looks like I must'nt speak too soon...There's a few folk have had such a bad reaction, that they think they might as well had a dose of flu.