First - I have no idea what post nasal drip is. Is that fancy terminology for a runny nose?
As I've said before... I have never had a cold in my life, I don't think. If I'm in very cold weather my nose will run... is that a cold? If so then yes, I have had many colds... every time I'm in cold weather in fact.
What I do get more than other people is "Swimmers Ear"... I don't know what it's fancy name is. It's an ear infection.. and it's the most painful thing in the world. Antibiotics help but it takes several days... and pain pills do almost nothing to relieve the pain.
Swimmers Ear is about the only malady I get regularly. I very rarely get the flu, or a virus. Certainly not 'yearly'... so as bad as Swimmers Ear is I count myself quite lucky. - JamesJM