One of my colleagues got the vomicking the next day. The other said it felt just like having the flu. Another’s arm and eye swole up. She’s Chinese and she goes “I look even more Chinese than usual!”
That’s a high rate of side effects. I wonder if different batches even of the same kind can cause varied reactions.
My husband’s niece is in her 70’s. She had the sore arm but the worst was the three trips to the ER with hives.