He has been getting many neurological problems from the past 1.5 years.Firstly,He got some pain,burning and tingling in right hand.Then,after taking medications,it was all right.After stopping taking medicines,He sometimes felt stiffness in neck,lower back stiffness,twitching at various body parts.He gets sometimes irregular Heart palpitations.He also started having digestion problems. He was ignoring all this but now from a few days ,he is experiencing a feeling of whole body moving from inside,shivering kind of feeling.Please suggest where should we consult and is there anything serious?