Reg sleep jerks. To do any nerve tests?

Doctors here ...could you please help me with the problem... I am 33 yr old female. I am experiencing sleep jerks while falling asleep . Exactly while falling asleep not in deep sleep. Am trying to sleep and I feel a jerk or involuntary movement and my sleep gets disturbed .. am experiencing this for the past six months... Not regularly...but if it starts the pattern continues for a week or more. I have done all the tests vit b12 , d , brain ct and general medical check ups which turned out normal. Even spine xray.... Drs says it may be due to anxiety... If so how can I recover from it without pills .. yoga .... Exercise nothing helps... I don't want to rely on pills.... Please help me out ... It makes me mad ..... Si I need to do any nerve tests???? Is brain CT not enough to rule out the problem....please help