Had this for years as well.
I do not think it’s an MS thing, as I had it for years before diagnosis (although I also think I had MS for years before Dx, so there ya go!)
I don’t get it so much in Summer, so I think it’s a temperature thing. It does not need to be very windy - and my eyes are protected to some extent by glasses anyway.
My mum (who doesn’t have MS) has had it for years as well, so seems to be a family trait.
I also always have a scratchy throat and a sniffle, whether I have a cold or not. Virtually the first thing I have to do when I get up in the mornings is look for a tissue, because my nose starts running straight away. Also whenever I eat anything - and I do mean anything. Nobody’s allergic to everything, so if it were allergies, it should sometimes be OK, depending on what I’m eating. It never is.
I used to think that maybe it was temperature-related - like the tears - and was triggered by eating something hot. But it happens too if I eat just salad or a sandwich.
I just have to put up with it, as I don’t think it’s an actual illness - more a case of the way I am. Although I did notice it seemed better on holiday in Italy - my mum said the same (about her stuff, not mine).
So there seems to be something about the British climate that doesn’t help us snifflers and criers.
I shouldn’t think it’s pollution, as Naples must be incredibly polluted, yet apparently no problem there. I think the only way I’d fix it is to move permanently.