Hi Kathy welcome to HCm I have gone thru your query regarding involuntary movements in limbs & head . It is a matter of great concern . The symptoms described by you , are of chorea and causes seem to be , Hereditary spinocerebellar ataxias , Huntington disease ,Inborn errors of metabolism ,Nutritional - Vitamin B-12 deficiency in infants .Worms are also one of the causes Chorea has been linked to numerous neuropsychiatric disorders, including obsessive compulsive disorder , attention deficit-hyperactivity disorder, depression and anxiety . Chorea usually begins around the time the child is learning to walk but may occur throughout childhood. Most children only have chorea, which is nonprogressive and tends to diminish during adolescence. Associated features may include delayed motor development caused by a genetic degeneration of nerve cells in certain areas of the brain . Intellectual impairment has been reported in one family in which affected individuals had intelligence quotient scores averaging 10 points lower than unaffected relatives. Anyway , For your info , diseases is outcome of weakened immunity due to toxins in our environment and in our food and our faulty life style which is why detoxification is such a critical process in your body . If the detox process is hindered, toxins will build up in your body eventually causing acidity and toxemia. These are the root causes of nearly all diseases ,requiring modification of life style and food habits . Include healthy balanced diet as fiber,vitamins , minerals ,cheeze, milk , supplements full of antioxidents , in natural form --fruit ,green veges , lemon juice with water and salt and pepper before meals , ginger ,garlic , Aloe vera 30 ml , Amla ,Turmeric powder a level spoon + almond oil a Tspoon with hot milk ,at bed time, with required work out ---- Regular walk,head to toe Exercises & Yoga posture , Dhanurassan , ,Bhujjangassan , Vajjarassan , Bharamari , Anulom Vilom , and most im portant is meditation . Avoid processed foods carbs , sugar , fried ,fast foods , Tea , coffee ,alcohol and smoking , Sleeplessness , stress and Constipation . All produce biochemical and metabolic conditions in your body that will decrease your immunity . So avoiding is definitely the first step in the right direction to detoxing the body, boosting the immune system and for resistance from diseases . All above may help the kids gain required improvement along with Homeopathic medication - Calcarea Phos 6 / 1 dose /for 15 days alternately Mag Phos 6 / twice a day / for 15 days Repeat the sequense if required Always remember , please see your doctor / professional for further guidance . Hope this helps solves your query .Take care .All the best . I wish them to get well soon . Don t hesitate to come back in case of any further query .