Replying to Paging Doctor NS.......

Yeah, i dont really care if you tell me to go to the doctor, if it keeps up a few more days im going to the doctor, but i was just looking for a few ideas of what might be causing this problem. The past 2-3 days ive been having some dizzy spells, like 2 days ago i was talking with my students, i coach sailing, but i shifted my weight to my right foot, got dizzy then fell over, then like 4-5 times this morning i would just get super dizzy and have to grab onto shit or sit down. Any ideas, ive had no change in diet, no change in anything really, im not dehydrated so i really have no clue what could be causing this, if it keeps up tomorrow i might swing by the doctor wed. morning but i really have no time i work 8-5 so NS find me some answers