Clear eye discharge is somewhat normal if its just there a couple times at day. Even you and I wake up with some sort of eye stuff. If its green or yellow there's infection. Clear water from the nose isn't a bad thing either, if it's thick , that's a problem. If sneezing , coughing, rattle in chest is also apparent, I would call the vet. If you suspect something is wrong, call the vet just to ask them for an opinion.
If these things you mention aren't familiar to you, then try the Benedryl pink tabs 25 mg per 25 lb.