Anyone ever black out after standing up?

[Mears]

Sometimes when I get up from sitting down, usually when I am seated on a low surface like the floor, I will black out. Basically, I just lose eyesight for a few seconds and feel dizzy. Anyone else experience this and know what causes it?

 

[tm37]

Brain tumor. You are going to die.

 

[dayg]

no idea...but I have heard that if you do too much of it (wacking off) you could go blind. LOL

 

[ggavinmoss]

Yeah, I used to get this when I was in my early - mid teens.

I think it happened because I was unpopular.

Hahahaah.

-geoff

 

[40oz]

yea, I have but i was passing a pipe....

 

[Haller]

Originally posted by: Mears
Sometimes when I get up from sitting down, usually when I am seated on a low surface like the floor, I will black out. Basically, I just lose eyesight for a few seconds and feel dizzy. Anyone else experience this and know what causes it?

Low blood sugar could do it. De you eat regularly. If so you might want to get your blood pressure checked.
Or I suppose you could have a brain tumor.

 

[rahvin]

Originally posted by: Mears
Sometimes when I get up from sitting down, usually when I am seated on a low surface like the floor, I will black out. Basically, I just lose eyesight for a few seconds and feel dizzy. Anyone else experience this and know what causes it?

You probably have low blood pressure. Are you normaly low? For those of us with low blood pressure naturally this can happen easily. I've had it happen half a dozen times, stand up from a laying position without sitting for a moment and I'll lose vision for half a second.

 

[jlee]

Once in a while, yeah...I don't drink/smoke/do drugs or anything, so I have no idea..lol

 

[Radiohead]

Lack of blood to the brain

Blood accumulates in your legs when you're sitting down and have not moved for a while, and tensing of the abdominal muscles restricts the flow of blood from the legs back to the heart

 

[isaacmacdonald]

Originally posted by: ggavinmoss
Yeah, I used to get this when I was in my early - mid teens.

I think it happened because I was unpopular.

Hahahaah.

-geoff

ditto. after 19 I stopped expeiencing that weirdness.

 

[Mears]

Well, I'm 21 and still get it...

 

[nater]

I think it's a combination of Mad Cow, SARS, and west nile. You better get to the doctor...well not because of those, but because you have some sort of real medical problem. The AT'ers will try hard, but they can't just diagnose you over a messageboard.

 

[MrDingleDangle]

basically its been answered, but its when you get up to fast, especially when u just use your legs...

basically not enough blood is getting to your brain...happens a lot with atheletes

i had it when i used to be a swimmer in high school...basically its not a big deal, but just dont stand up as fast and it shouldnt happen

 

[Kev]

Originally posted by: Radiohead
Lack of blood to the brain

Blood accumulates in your legs when you're sitting down and have not moved for a while, and tensing of the abdominal muscles restricts the flow of blood from the legs back to the heart

what he said.

everything else posted in this thread is wrong

 

[J Heartless Slick]

Originally posted by: Mears
Sometimes when I get up from sitting down, usually when I am seated on a low surface like the floor, I will black out. Basically, I just lose eyesight for a few seconds and feel dizzy. Anyone else experience this and know what causes it?

GO SEE A DOCTOR!!

 

[HomeBrewerDude]

we used to call this a head rush.

you can avoid it by not standing up suddenly.

see a doctor if you are concerned.

 

[nativesunshine]

Originally posted by: Mears
Sometimes when I get up from sitting down, usually when I am seated on a low surface like the floor, I will black out. Basically, I just lose eyesight for a few seconds and feel dizzy. Anyone else experience this and know what causes it?

Happens to me a lot. A couple times I've had to grab onto something real quick to avoid falling and hurting myself. Once I was working at a local grocery store and I almost collapsed completely on the register. Everyone said my face turned white..and I looked like a ghost.


It sucks...but I don't know why it happens to me.

 

[foolanger]

Originally posted by: Mears
Sometimes when I get up from sitting down, usually when I am seated on a low surface like the floor, I will black out. Basically, I just lose eyesight for a few seconds and feel dizzy. Anyone else experience this and know what causes it?

I acctually experienced this a lot and went to a specialist. What I found out was that everyone's blood pressure drops a little when you get up.. Mine was dropping a bit to much.. just get up slower and you should be fine.

 

[WarmAndSCSI]

I do believe the only cure is castration.... I'm sorry

 

[dullard]

I had it all the time in high school during months that I ran track or cross country. I would get tunnel vision with red and blue fuzz around (like a TV set on a channel you don't get) and would be very dizzy. I asked the doctor and he said try eating more sugar, or just stand up slower. He didn't mention blood pressure, but you could try increasing your blood pressure by eating more salt.

 

[clamum]

Originally posted by: 40oz
yea, I have but i was passing a pipe....

to me!!

 

[skateallday]

i dont black out but i do get really dizzy. i think its just cause i get up to fast.

 

[Aceshigh]

Only one time when I was in a hot tub and got out and stood up quickly.

Low blood pressure.

 

[Radiohead]

Some more info for you:
Link

 

[igowerf]

Originally posted by: MrDingleDangle
basically its been answered, but its when you get up to fast, especially when u just use your legs...

basically not enough blood is getting to your brain...happens a lot with atheletes

i had it when i used to be a swimmer in high school...basically its not a big deal, but just dont stand up as fast and it shouldnt happen

basically right?