hello,, my son was on novo-divalproaoex 500mg. he is challenged,, but stopped taking this med. about 3-4mths. ago, he said it made him feel funny, dont know how just funny,, took him off without doctors permission and he was doing fine, but now he says he feels like he is losing his mind like forgetting things,, is it okay if he starts using it again till he sees his doctor in january? He was previously on it for almost 3 yrs. thanks/