I don’t think his meds will just start working again magically with out some adjustment. He’s had a deep traumatic event happen. He’s lost the love of life and his functioning buffer. Even if someone is perfectly mentally healthy, loosing a spouse is not easy to over come. I work with seniors and many healthy people don’t get over the loss of their spouse. He’s Sz, he’s not just going to snap out of loosing his wife. He’s going to need some help. This illness is known for tampering with emotional responses, so he might come off as happy and manic when really he’s suffering. I’m sure he feels great, he’s going into positive symptom with all the energy of a power house.
My brother has a “cross wired” laugh. He says he feels sad, he can feel the deep pain of sorrow hit him, but instead of tears coming out, a laugh happens. He doesn’t think it’s funny at all.
When that laugh happens, we the family know that he’s deeply hurt, very scared, and very very upset. This illness cross wired his head and when he’s really happy, tears will come, when he full of sorrow, he’ll laugh. He can’t help it.
But back on your Dad, I’d say, your fears of spending all the money, loosing the house, agitating the neighbors are all very real.
I would say, find a mental health service in your Dad’s area. There are visiting nurses and case workers who do weekly wellness checks, help with bills, and can keep an eye on things, med can be delivered, so can groceries. Day hospitals and senior centers and get him out for small outings so he doesn’t recluse in his house and slide into negative symptoms.
and google mental health services for your Dad’s area and you will see what is available. You will need to talk to a lawyer to see what you can do financially and you do need to talk to a case worker who knows the legal complications of dealing with a parent with mental illness who can’t take care of his finances.
It’s a fine line, he’s an adult of course so they are going to protect his privacy, but he can’t manage on his own, so he needs to have outside help. There is a lot of legal involved in this. A case worker will know the laws of your Dad’s area. Many laws are different from state to state. So what is good to go in your state might be just the opposite in your Dads.
I hope this gives you some place to start. Good luck and I hope the best for your family. Please forgive me for not saying this earlier, but I am sorry for your loss.