when you dont have anxiety, depressed mood or sleeping problems etc due to your thoughts, its not easy to find a right medicine or that is the best option for you in my opion. the best way is to distract you in doing exercises and tasks over the day so that you are mentally occupied. you cant get your questions answered, when you think about it, this leads only to perpetuating your unreal feelings. you have to say i am real, and this is for sure.