I have a 3 1/2 year old male German Shepherd who weighs 103 lbs. Has always been a big baby to me, but definitely sees my husband as the alpha. A couple weeks ago he growled at me while I was trying to get something off his nose which by the way his nose stays beat up from all his shenanigans. I have always played with him, he would bring me a ball & I would try to get it out of his mouth to throw it. Guess I was a little nervous from his earlier growl, and thought he growled when I tried to take the ball so I hollered and put my hands & feet up in a protective position. He backed away and gave me the longest cold hard stare. Now I am nervous with him and was wondering if he can sense that. He seems distant from me now and not the loving dog he was. I think most of the problem is me and not him, but wondered if he can sense me being afraid of him and how I can get over this. I want to believe he will not hurt me, but he is so large it does unnerve me. I have quit petting him unless he comes to me & solicits it where I used to love on him all the time. Can he sense my uneasiness? He also stares at me a lot like he's trying to figure me out and when I am around he constantly licks his lips. Any advice? Thanks for your time.