I have always felt a lump in the back of Rex's neck for as long as we have had him I think, a little above where the collar would go. Well, I was just washing him, getting him prepared for his pictures later today and I really started feeling it trying to figure if it is normal or not. When his hair was wet I was better able to see, it isnt red or anything and doesnt visibly look any different than the rest of his skin. Is this normal or should I be worried? Because, somehow, I am worried.