Hi. In recent months my 62 y/o father has exhibited behavioral changes which have resulted in him acting unlike himself. He is combative, always arguing and refuses to ever accept he's wrong, everyone's against him apparently, he's saying we are disappointments and he's gonna leave our family and never return. He's irritable and isolated and it's impossible to speak to him. I've tried gently bringing up him seeing a mental health professional and he gets angry and tells me I'm the one who needs pills and mental help. I've tried to inquire if he's in a depression and he yells back "you are in a depression" etc. I'm at my wits end. I love my dad and I need him, I need him to be healthy and be around, but I don't know what to do anymore. I dont know if this is old age, or a bigger mental health issue. Does anyone have advice?