Hi My Son Is 13 Years Old And He Just

hi my son is 13 years old and he just woke up helusanating and it was scary becouse he was not himself his all right side of his body was pulling dawn and he kept saying to many people are around me keep them off me ?? he was walking back and forth then he asked for water and some fresh air then he ran to the bath room but walk right out , i was tring to talk to him but he was not responding , he just said i want to go back to my room , this is not the first time it happen its been for at least 3years what do i do?