I happens if my mind and body need to get dizzy and pass out but i don't?

You will...: If your mind passes out your body will eventually catch up. If you could be a tad more specific we could probably help more...

Dizziness: Dizziness has many cause. it can be - lightheadedness -- mainly we look at cardiovascular causes - spinning around your head- vertigo-- we look for neurologic causes it will be more helpful if you are more specific . See your doctor if it is ongoing symptom.

Mind and body: Sounds like you need to get an appointment to see a Psychologist. You will get excellent care and end up as happy as can be!

Need check: Needs to be checked for possible presyncope. Some people can have a feeling of "about to pass out" but don't. Blood pressure need to be checked, heart and lungs, etc.