Anxiety and severe worry about my dad

Me again. I've been such a roller coaster lately. My anxiety has been really high. I keep thinking everything I do or eat is going to make me sick. I'm really down today because my monthly started yesterday and I'm in severe pain and it's making my anxiety worse. Plus I've been really emotional lately. I went from angry to now crying all the time.

I just broke down. My dad is over weight, has bad mental problems and is a diabetic. I'm sure you've heard what I've been through with my dad. But his living conditions and health are a big concern to me. He has many people living in and out of his house. His girlfriend is a hoarder. Their house is infested with bugs and rodents. I know that there is not a clean place in that house. I have no idea how bad it is because I'm not allowed in. My dad loves these people and I have a strong feeling against them. I believe they are harming my dad. She buys nothing but junk food. They live on frozen stuff and her idea of vegetables is canned corn. For the past 2 years my dad has complained of flu symptoms. He's always sick. He ended up losing part of his foot. I rarely see him because he's always complaining of being sick so I have this regret feeling because I have such germ issues I never see him. I'm afraid he's going to die and I never see him because of my issues. Every one has been sick in his house and he's had abdominal pain and diareah for almost 2 weeks now. So I haven't seen him in almost a month. I want to call some kind of authority because I deeply feel his house is to blame. But I know my dad would be mad at me. I don't know what to do.

Thanks SC.
It's so hard. I tried to bring it up to the therapist but she acted like it was nothing. It hurts me so much. Between my period causing extra upset and my dad I was hysterical. Now I'm miserable from crying because I tried to talk to my husband but he didn't hear me because he was too into watching videos on you tube.
After some long crying spells he finally asked what was wrong then I was mad at him. But I finally talked to him but it just irritates him because he knows the pain my dad causes me and yet I still love him. He didn't have his parents so he can't completely relate.
It's just that last time my mom was in the hospital and he moved all those people in. At that point we weren't allowed in. We tried to do an intervention and get them out but he fought to keep them there.
Then my mom died and I pretty much lost both my parents at that time. My dad has turned into the same kind of people they are.
I told my husband I know my dad has never taken care of himself but it's never been this bad. I haven't had him over because he's always either complaining about chills, fever, stomach issues, diareah. And I never know if he's contagious so I just don't have him come over. If I do I sanitize my house after he leaves. It's just bad. I feel like such a bad daughter but I can only do so much. He chose those people and the living situation. My grandma owns the house and she's called pest control many times but they can't do much because the house is filled wall to wall. The garage can't even open because of so much stuff. The patio and backyard is full of junk.
I understand his diet and smoking doesn't help but living in filth can't help either with things crawling everywhere. I'm sure their food is never thrown out. So no telling what he's eating.
I just can't help but worry. I can't go anywhere with him. His mental issues give him severe paranoia in public places. We went out to eat together a couple of times and told me I had to get her food too because it wasn't fair. I refused of course. I wouldn't buy her a piece of ice.
I just want my parents back. I know I have my kids and husband. But to suddenly just not have your mom and dad anymore is so painful.

I know. I tell him all the time. My dad with his problems he has major depression, acute manic bi polar, schizophrenia, and severe anxiety. He's on many medications for his health and for his mental problems. I don't know if it's his medication or his mental disorders but it's like he doesn't care, he acts as if his actions or words have no consequence. He's always been like that and I know that but no matter what I love him and he's my dad. But now he's more of a dad to her kids. My littlest son gets so happy to see him and talks his head off and he doesn't care. He's their only grandpa and it hurts.
I try to block it all out the best I can because I know he doesn't care and he gives no effort. If anything he makes it worse. I just miss him. I use to see him at least 2-3 times a week now maybe 1-2 times a month or every other month. It's just crazy to me.
It's like both my parents died but one is still physically here but he's not. Because I can't see him or talk to him. It seems like I have to pay to visit him.