Eyes blink and will close, head turns side to side and moves backwards, have speech problems sometimes and mouth will draw to the side, hand shakes, leg shakes, weak, unsteady, need to respond and cannot thou I can hear you; taken anxiety, psch and depression meds in the past. Currently on Ativan for anxiety and mvmnt disorder, what could be my possible diagnosis? Been to numerous neurologist, no answers. Do not say I have seizures. Please help.

No idea.
Not sure how we can second guess numerous neurologists.
A mild catalepsy? Tourette's without the speech? I assume that you have had all the usual tests including MRIs.
Were you able to be tested while it was happening?
It really does sound like abnormal firing in the brain, no matter what terms you don't like.

Then there are rare metabolic disorders.
How about being tested for tetrahydrobiopterin-deficient hyperphenylalaninemia, a more rare type of PKU?
Just a wild guess.
Read the wikipedia page on 'inborn error of metabolism' for a list of all types.

I see that you asked this under another ID (wilsie) in 2011?
I'm sorry that this has been undiagnosed for so long.