Ok why am i behaving like this?

sometimes when i stare its hard for me to blink especially if people are looking at me or if i think people are looking at me i just cant shake that feeling out of my mind.when am on the bus or train and am sitting or standing my body rocks or sways back and forth like a bobble head doll.you know how when you sit or the bus or train or when your sleeping even when the bus or train is moving you sit still your body doesn't rock around when i say rock around i mean it feels like someone is literally shaking you back and forth and side to side.it really gets on my nerves and its VERY VERY embarring because when i wake up people look at me like am crazy or when i look at them they turn away, or pretend to be sleeping.its feels like i cant control my body at all and my leg and arms jerks and twitches at times..but when am awake i sit normal. but when am awake and the ride i really rocky and bumpy i cant control my eyes, when i say cant control my eyes i mean my eyes always feel heavy and tired.and when its windy its feels like the wind is going through my eyes my eyes are usually dry as well.i don't know if its social anxiety,eye strain, or tourettes (mind my spelling). oh i forgot this is really weird when am sleeping and i have a dream sometimes what ever i dream about i act it out while am sleeping.this is messing up my life please help.