No, dizzyness is usually not occapianied or thereafter. However, with vomiting, pinch your arm and if it doesnt go back to normal within 3 seconds...your dehydrated. Or..if your lips are chapped, and thhey weren't or chapped even more than were....your dehydrated. Dizzyness can be related to being dehydrated. It can also be a side effect from that medication the doctor gave you. Condsidering you've been dizzy all day, certainly I am no doctor, but I'd be calling the pharmacist to find out if its a side effect from the medication and if not, I'd be calling the doctor. It can be simple like dehydration or as serious as a rare blood disease attacking your body like Sarcoidosis or Wegeners.