[bang-on]

louigi,
i was the same,untill i met a crowd from the uk diving in the red sea.the chaps name i think was neill,anyway he suggested humming a tune whilst diving!
i though he was taking the piss but i tried it anyway and sure enought it worked (for me).
so pick a favourite tune and breath in/out with the line you repeat over and over.
suck it and see.
barrie

nb cheers neill!!