My dogs eyes are really watery lately and he's very lethargic, what do you think?

Question

Also he doesn't really want to go outside much. Maybe it's the heat. But after like 10 minutes of walking he wants to go in. Do you think he has allergies? He's sleeping a lot too.

Answer 1

sounds like he could be having an allergy attack to something outside.  just to be sure, i would take him to the vet.

Answer 2

Take your dog to the vet and make sure he's very well hydrated.  He might have had an allergic reaction.  

Answer 3

I think you should ask a vet.