I was in the Canaries and got back a week ago. Around a 5 hour flight. Was absolutely fine when I was away but the day after getting back felt pretty dizzy. Since then I’ve developed what feels like a pressure pain in my temples and forehead and sometimes across my cheeks to my ears. The dizziness hasn’t gone away. Also had a slightly upset stomach but that’s not out of the normal for me. The glands in my neck also feel a bit on and off swollen. At first I’d thought it was just from the plane but it’s been a week now so wondering if it’s a weird bug. Our GP surgery have said they are very short staffed and can’t see anyone unless it’s an emergency - so don’t think i qualify!