Lately i've been having shakes in my head, with twitching every once in a while, what could be causing this?

Need seen: Acute tics need evaluated. If huntingtons disease doesn't run in your family, most acquired tics are autoimmune in etiology and are treatable. Other potential causes include drug related.

Torticollus: Shaking of the head, rather than chin, is usually due to a benign condition, known as familial essential tremor. But if your noticing tics, you may have a condition that mimics this at times, known as spasmotic torticollus. This is benign as well, and treated most successfully with botox.