I have been to see my specialist and he has said that all the tests done on the first occasion 3 months ago showed nothing concrete but the one's done in the past few weeks are conclusive in showing a rapid drop in oxygen sats down to 69%.
They have given me oxygen for night time but need me to travel to Nottingham Hospital to try to find out more about why it is happening and for a decision on if I might possibly require ambulatory oxygen, I have to say I am a bit taken back and Nottingham is approximately 3 hours away but if it helps me to carry on as normally as is possible then it is worth the drive, (just hope they have a Costa Coffee there lol.
Hope you are all doing well and we'll wishes to anyone having a difficult time with their health at the moment.
Ron