h,i m wondering about my son,he is 19 yrs. of age,an ever since he was young child he has had a bd temper,he used to be good for a few mts. then crazy for next few mths. this was when he was about 4,at 10 mths. old he would bang his head off a wall if he was mad...now he s 19 an he can blow up in seconds,he s ok when he wakes up then within seconds his mood changes he becomes very verbally abusive,he can be physically abusive,he always beat on his 2 sisters when he was younger age 4 or younger,he says it feels good to hurt ppl. it gives him a rush,rite now he only hurts verbally,but u can see rite through his eyes when he gets in a certain state,an he scares me,it takes everythin he has not to be physical,but everyone that knows him,knows it only a matter of time,do u think he could be scitoprania(sorry for the spelling) i have a first cousin of mine that is,an ppl. through my sons life has said i should get him tested,there is something not rite with him,an my family doc. likes to just say he just likes to get wat he wants,e s ok..but he never tried to look at my son...plz. help

Summarized question: What are the signs of having Schizophrenia?