Does this sound like Tourette's or something else?

The eye twitch thingy sounds like you may be lacking in magnesium. Muscles twitch if theres not enough magnesium going around in your body. But the shrugs and grunts is definitely Tourette related. I feel for you but am glad that you have a good attitude towards this and are looking for answers and solutions! Go see a counsellor (a quality one, theres some useless ones out there) and try to get to the bottom of your problem. Good luck and love yourself!! :>)