Hi. I am hoping for some advice. I am under a cardiovascular respiratory consultant for 2 years though I have never had a consultation with him. I meet technicians who take observation and tests and pass the info to the consultant for review. I have been fainting for 8years and 4 years ago ended up in hospital. My oxygenation was 82%. Since then I have had numerous tests and luckily my heart lungs and brain look good. But my oxygenation during the day never gets above 95%, ticks over at 90%, and at night or when I'm ill can go as low as 74%. I have Coeliac disease and Dermatitis Herpetiformis (autoimmune disease). I'm fed up with fainting and being exhausted all the time. My GP says he's surprised that the hospital haven't put me on supplementary oxygen, but the hospital say I am managing OK without and they can see no reason for my oxygenation to be so low. My question is, should I accept the position or should I insist on a second opinion? I'm am so fed up. Any thoughts and guidance would be appreciated.