A good book which is a nice simple read is Hyperventilation Syndrome by Dinah Bradly which I got off amazon.

It helped me a lot with correct breathing patterns and made me realise how my breathing was causing the other symptoms.

Love Piglet xx

"Supposing a tree fell down, Pooh, when we were underneath it?" said Piglet.
"Supposing it didn't," said Pooh after careful thought.