My 3 yr old Lab/Shepard is suddenly obsessed with me. He completely favors my husband, that is, until this past weekend. Normally I have to do handstands and summersaults just to get his attention, but now, he wont leave me alone. Saturday morning after I woke up, he followed me to the bathroom, then was on my heels since. If I am sitting in at the computer, hes under my feet, and will make little noises reminding me hes there, or if I get up, he follows me. Its like having a second shadow. I think the weirdest behavior is when I am talking to him or scratching him, he shivers. Its in waves too, like he'll shiver for a few seconds, then stop, then start shivering again. He cries when I leave the house and lays with me when I am in bed. This is not normal for him. Is something wrong?