I'm feeling wracked with guilt. I had a friend and her son over on Tues, and he came down with pox on Thursday. My baby is 3 months and exclusively breastfed and was obviously exposed to it. I assumed he wouldn't get it as was being BF, so I unthinkingly went to my usual baby massage class on Friday. I'm suddenly paranoid he's going to get pox and have transmitted it to other babies. I know there's nothing I can do now, but am I right to feel guilty? Can't stop thinking about it...