Is my husband suffering from paranoia?

My husband has been acting very strange lately. He feels that everyone including his family and friends are against him, or out to get him. He feels that everyone picks on him and that no matter what he says or does he's always in the wrong. We try everything to keep his spirits up but nothing seems to help. he even thinks our kids are turning on him (even our 5 year old). He has been spending more and more time off by himself watching tv in his bedroom or in the living room. If we try to interact with him we're "picking" on him but if we leave him be we're ignoring him. i'm at a loss and our marriage is suffering terribly because of it. I don't know how to approach him about it, i'm afraid he'll think i'm "picking" on him again if i try to bring it up. Is there any advice you can give me and maybe a psycosis i could offer up to our dr. if needed?
Any advice would be helpful, thank you

Confused Wife

You can bring things up without making him feel that you are picking on him. Accept him the way he is. Give him a lot of appreciation every time he does something good. Tell him that you love him and admire him.

Try to find things to like about him and ask your children to show their father that they love and trust him, if possible. Don't ever accuse him, but ask him in a nice way what you need from him.

If none of this helps, he may have to see a psychiatrist. If your husband refuses, you can go to a psychiatrist yourself to start discussing your husband's problems.