I don't understand why she suddenly wants them huuuuge again, after scaling them back and looking so much better? Anyway, yeah... being under anaesthetic isn't something to take lightly. Someone can suddenly just die. She's not old enough that the risk is sky high, but she doesn't have a good lifestyle and the more she gets, the more the risk builds up. However, I think she's more likely to die of something drink/drugs related, like crashing her car again.
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I'm curious why people think Bjorn looked sick the other day? Am I the only one who thought he looked ok? He's thin, but he's always made a big deal about strict diet and going running. I think some measures people take to look younger can backfire, so the dyed dark hair and big glasses made his face look pale and old in comparison, but I think he looked fine? Of course he might die not of being ill, but just being old.