I posted you a reply hours ago but it didn't go through and I've only just been able to get back on the site - been having problems with posts and getting on here all day. Anyway here's what I said....
It isn't necessarily a sv that your boyfriend's son has - kids tend to v* from all manner of things, it could be something he ate or even having a bad headache (does he suffer from migraines?)could havemade him sick. I also think if he only v*ed once and isn't complaining ofstomach ache (if he mentioned to his dad he had a headache he would have also told him he had stomach pains) then it's not a sv.
I also find if worse comes to worse and us emets do get a sv more often than not we are effected at the other end and not with v*ing. And as much as diarrhoea is unpleasant I bet all of us would agree that it's preferable to v*ing!
Try and stay calm and think positively, any funny feelings you get in your stomach or any queesiness will I'm sure just be due to worry and anxiety and NOTto having caught something from your boyfriend's son. I'm sure you'll be just fine.
Tracey
.•:*¨¨*:•.Tracey.•:*¨¨*:•.
Fall seven times, stand up eight.
- Japanese proverb