2 weeks after leaving hospital I flew to Majorca for a prearranged holiday. I knew I wouldn't get the ok to fly so I didn't tell any of the hospital Docs or my GP. Silly I know but I hadn't had a holiday for 3 years. Oh dear! I thought I was going to die on the plane. Sats plunged to 75 for a while and the only thing that stopped me asking for oxygen from the crew was the thought of appearing on the TV show Sun Sea and A&E lol. Is this normal when flying when sats had been hovering around 90 at home?