ive noticed that over the past few days gizmo has been keeping his right ear close to his head...he has done it periodictly over his life but its gotten more frequent. ... I just looked at it and its a bit more pinkish red inside than the other ear and is a bit warmer than the other ear. Is this a sign of a possible infection or could it be warm and pink because he is keeping it close to his head? He seems to be normal otherwise- eating, drinking, pooping, active... I do not want to put him through the stress of the vet if not necessary.... Any ideas?