My wife is 35, fit, eats well, healthy etc.
For the past few winters she has had colds/flu/chest infections and pnumonia on a monthly basis. Like you suggest Mike – the slightest cold day/tiredness was a ‘trigger’. Each time she saw the doc is was ‘mtfu, you are a tired/stressed young mum – eat better and get a proper sleep’.
Then a friend who is a consultant and a locum GP got her referred.
She has common variable immunodeficiency – the treatment is expensive, only paid for by less than 50% of NHS trusts etc – but is slowly working. She feels better and certainly has fewer illnesses/problems.
May be worth asking doc to check for (simple couple of cheap blood tests).
Matt