I once got it before the first deep-stop in around 80m (245ft).
It was a shitty feeling.
The next day i developed a cold, so i think it was related to that.
Normally i also get it on shallow dives, often in pool lessons.
My doc checked everything but did not find anything.
If possible i try to continue ascent. When i get disoriented i just stop
and
wait for a few seconds until my ears equalize.
I stick to my bottom timer during the ascent to watch my ascent rates,
cause
i dont trust myself then.... ;-)
Michael


>I've had it 2 or 3 times. Usually when ascending at the shallowest
point of the
>dive, ei after 20 fsw stop. The spinning is characteristic. Sometimes
nausea is
>envolved. I just keep ascending slowly like I know I am, not how I feel
I am. I
>concentrate on not barfing until on the surface if I can help it. After
that I
>get to the doc who checks me for vistibular bends and barotrauma. For
me its
>been transient and benign.

>Nathaniel Fuster wrote:

> >      Just wondering who else on the list has problems with vertigo.
> >
> >      Vertigo is the dizzy feeling that often accompanies unequal
> >      equalization of pressure within the ears as one ascends or
> descends.
> >
> >      I've noticed that mine ONLY happens when I ascend too quickly
> (like
> >      going up a wall or a sharply rising bottom contour. It also
> seems more
> >      prevalent when the viz is rather poor (but not always the
> case).
> >
> >      I generally have to hold on to something when it hits me, and
> remain
> >      motionless until it subsides (usually 20secs or so). It feels
> like my
> >      surroundings are passing around me in circles, even though I
> "believe"
> >      I am hanging motionless in the water.
> >
> >
> >
> >      Anyone else get this feeling from time to time?
> >
> >                                                 -Nathan..
> >
> >      Nathaniel.Fuster@gu*.br*.af*.mi*
> >
> >
> >
> >
> > --
> > Send mail for the `techdiver' mailing list to
> `techdiver@aquanaut.com'.
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> 
> 
> 
> --
> Guns and Armour of SCAPA FLOW
> 1998 Underwater Photographic Survey of Historic Wrecks
> http://www.gunsofscapa.demon.co.uk
> 
> 
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