[Margaret Pilkington]

did they say hyperinflated lungs Rob........I have never heard of hyperventilated lungs(have to admit that my main field of expertise was in Women's disorders - gynaecology, but I did take interest in all other fields of medicine too).

Like Eric has said, telling you not to worry is pointless....you will do it anyway.
The good thing is you are being seen soon. I would also say, don't read too much into this at present....it may just be that they have a clinic slot free because someone has cancelled an appointment.

Here's wishing you well.