Hi Everyone...
Last night my 4 month old puppy was active and running around being his normal self and all of a sudden he started limping on his front right leg. He didn't yelp or cry at all..just started favoring it and became very tired and just slept most of the rest of the night. We could touch the leg and checked the joints and everything and he doesn't seem to be in pain so we figured maybe he just pulled a muscle and we would give it until this morning to see if he is better...usually when he wakes up he is a spitfire and running all over and this morning once again he is limping and he did cry just a little bit and he is sleeping on my lap as we speak...I am calling to get him in to the vet this morning but has anyone else had this happen?? I am really worried

He is my baby and I am scared...
Any response would be appreciated...