Wut is wrong with me? i keep almost blacking out and falling to the floor?

Question:

i dunno why. this diddnt use to happen to me.i will sometimes be sitting down or laying down, and then when i get up, i feel a lot of pressure on my head, i feel dizzy, and i start to lose my vision. and i will have to hold something to stay standing. my head feels really heavy. and it only takes like 5 seconds to go away. its hard to keep standing when it happens. my mom says its cuz im dehydrated, but its not.i drink a LOT of water. it the thing i drink more than anything else. especially since its summer. lol. is there some sort of disease or problem i could have that uses up all the water or something causing me to drink a lot more? like for example, a car with a leaky gas tank. u have to fuel it up more than normal cuz the gas is going somewhere else

Answers:
First, try not getting up too quickly, you could be getting up too fast and all the blood is rushing out of your head and causing a near black out.

If that doesn't stop it, you need to see your doctor. I had a friend who had this happen to her in high school and it turned out she had a heart problem, so maybe you should see the doctor anyway, it's better to be safe than sorry.

Well are you eating too??
I know what you mean... it's because you got up to quickly, it will make you dizzy...

I think u should see ur doctor it sounds kinda serious.
But ur mum is right it sounds like ur dehydrated although ur drinking alot.
Yes i does sound like ur example of a car.

You probably have an inner-ear infection. You may not feel any pain in your ear, but that`s your balance center & it can make you extremely dizzy to the point of blacking out. You sound young, but it could also be high blood pressure. Either way, you should go to the doctor & get checked. I doubt it`s lack of water, if you drink plenty & it`s not going to drain out somewhere else.

Probably blood pressure is too low. SEE YOUR DOCTOR.SOON!

It could be as simple as anemia, as complex as a heart problem. the only way you'll know is if you go to your doc and get some tests done. They'll want to do blood work, a physical, and maybe a stress test (on your heart), or an MRI.

It could be a drop of blood pressure when you stand up, vertigo, low blood sugar. if it continues go see your doc

this may sound stupid but i think you may need glasses
i only found out recently i needed them and i felt a lot of pressure to my head and sometimes dizzy and my eyes felt like they were straining but i would consult your doctor first

Wut is wrong with me? i keep almost blacking out and falling to the floor?

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