I would agree that your brothers behavior is not normal or acceptable. Some of his symptoms may be indicative of psychosis, including his belief that he can see Jesus, his fear that his food is being poisoned and the fact that he thinks he is always sick. Those are called delusions.
He also seems to have anger and empathy issues. Those are not necessarily associated with any one mental health disorder but coupled with his possible psychosis, this situation is troublesome.
Undoubtedly, his symptoms are concerning for you and your family. He is quite aggressive, abusive and increasingly unstable. The major concern is that he may become physically aggressive.
My recommendation is to keep tabs on your brother’s behavior and try to remain safe. When he is verbally aggressive, it’s best not to fight back. Doing so might only inflame the situation. Everyone should try to keep their distance.
The most difficult aspect of your situation is that while it is seemingly clear that your brother needs help, if he doesn’t want it, then he is under no obligation to receive it. You can recommend that he seek treatment and ask him to go, but he has the right to say no. In most cases, the only time an individual can be forced into treatment is when they are imminently dangerous to themselves or to other people.
If you fear for your safety, then you should call the authorities or the local mental health crisis team immediately. The mental health crisis team can come to your home, assess the situation and determine the next steps. If he is deemed a danger to himself or to others, they will take him to the hospital. Once in the hospital, he can be evaluated and given treatment.
If you’re unsure about how to handle a concerning situation, call the local mental health community center or the crisis team and ask for their advice. They can assist you in determining whether or not their services are required. If you have additional questions that you think I may be able to answer, please don’t hesitate to write again. Please take care and stay safe.
Dr. Kristina Randle