Funadvice Logo

When I stand up from sitting down I almost pass out why?

Home More advice Health

Everytime I stand up I either pass out or get really dizzy and lose vision. Everyone in my family has noticed, and I know that its normal to feel dizzy if you stand up to fast. But I feel weird after it happens. And I will fall to the ground unless someone catches me. Why is this happening? Im not to worried just a little concerned.. Its been happeing for a long time now and is getting worse over time. Yes I have seen a doctor but they are still not sure what it is..