For 3 days i've had this urge to crack my neck, I get the shakes and it's hard to focus on people and talk to them. I feel like I took some sort of amphetamine. Feel like i'm going 100mph but everything is fine according to the Doctors, they told me it was anxiety. Why do I have this urge to move my neck, it feels stiff and like I need to crack it constantly to get that feeling to go away for a little bit. But I woke up today with the same feeling, it didn't come on suddenly, I woke up with it. Nothing has changed since last night. My hands tremble, talking to people is impossible cause I feel like they'll think i'm on something the way i'm shaking. Is this Anxiety or can it be something else.