I have a 6 month old puppy and he has recently started sneezing.  His eyes are a bit weepy - no discharge just a bit weepy.  He's eating well with no problems.  I thought perhaps he could have something stuck up his nose (he does like to run through the long grass).  And he sometimes snorts (which he never used to do).  But he was sick in the middle of the night last night and then again today - thought it could be the heat?.  He's still eating well... any thoughts on the subject?

could be hay fever?

Is he itchy too, usually with dogs allergys even inhaled ones cause itchy feet and tummy.