By far, I am most concerned about the pale gum color. That can suggest a circulatory problem (low blood pressure) or being anemic (low blood count). For that symptom alone, I strongly encourage a vet visit, even a ER trip, today!
But, there is also the eye issue. A acute onset of eyes being closed could be due to a recent injury, like the eyes being scratched causing corneal ulceration. That also means a risk for getting infected, if not already infected. So, that's vote number two for going to a vet today for evalation.
I'm not sure about the limp on the leg, other than a possible soft tissue trauma that could have occurred. He is a young playful dog, so just about anything could have occurred. But, if no longer limping, that goes to the bottom of our concern list.
Sorry. Declined the Live phone call. Vets are really prohibited from doing phone calls by the veterinary medical board, but easy enough for me to type out answer.
Hope that information helps