Awwwwww thanks everyone for your lovely replies, its good to find other people in the same position so you have someone to talk to who understands how you may be feeling. (not good too because it means other people are ill)
One strange thing they did find out was that my heart is on the wrong side of my chest and its back to front !!!!! Also they kept asking me if I had had chest surgery after they did X Rays as it looks like I have some ribs missing !!!! I have a curved spine, not that you would know by just looking at me but this, along with my heart in the wrong place means my chest cavity isnt as big as it should be.
Seems I am a funny old thing lol and its took to the age of almost 50 (this month) to find out.
Julie xxx