Head Twitches/Jerks??

Hi, I'm misty. I'm 24 and have autism. I've noticed that lately I get a lot of headaches and odd feelings in my head and that at times my head will twitch/jerk to the left like three times. It's over in seconds but I'm not sure what causes it. I do have anxiety so I wonder if it's that. But I'm unsure.

Have any of you ever had this? Or if you know what it is could you tell me please. Thank you x