I think your ear drums burst due to the pressure at 30 metres, unless you partake in some kind of special breathing regulation which free divers do.I think if you are using lots of blood flow, such as whilst trying to not die, whilst you have very little oxygen in your blood and are at a higher pressure you can burst capilleries if I remember rightly. Which would explain your nose and ears bleeding.
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Sun 10 Aug 2008, 2:30,
archived)