This is the only way my friend uses H. Something about the needle would probably send her over the edge and that's not really something my friend nor her partner want to get into. However, snorting
can be just as addictive and is her main ROA. My friend isn't sure what was going on with your friend. My friend has certainly spent 5+ hrs puking her guts up (literally had to drink more and more just to have something to puke up) but never days. Never...dizzy.
Has your friend vomited a lot at this point and not been replacing fluids? If so, your friend is probably severely dehydrated and should go see a medical professional. This can certainly cause dizziness. Also, if your friend is STILL having this issue, it's Doctor time.