Hey guys, so I really need some help. My friend is acting very strange. I'm starting to thing she has a larger mental disorder than depression like she's been telling me. I'm thinking it might be schizophrenia or just extreme paranoia. She's been refusing to take her medication unless something really bad happens that warrants her to have to take it. I don't know how to talk to her about it since she won't tell me what it is that's going on. Anyways to save time, I made bullet points of how she suddenly started to change over the past 3 years of our friendship.

-Began picking on my appearance nonstop. (Hair, skin breaking out, clothing, my relationship -- boyfriend doesn't make enough money)

-Would call me nonstop about her boyfriend harassing her. Vent to me which was fine. Ask for my advice then get extremely mad at me a couple days later/ignore me completely for weeks if I advised maybe he wasn't the one for her or to talk to him about his behavior. Or hang out with me and the second they make up bail on me last minute or ask me to leave.

-When my dad fell ill(my dad had a severe second heart attack/organ failureHe was hospitalized for almost a year and doctors didn't even think he would make it past the first night. My mom passed away shortly before we were friends) she came and started going on about her boyfriend and basically ignored my situation. Started criticizing my boyfriend for his past/not making enough money

-Continued to call me nonstop while I was in the hospital to vent about her relationship despite my situation. Began saying some strange things such as how she used to be in witness protection plan in China and now airplanes fly above her house to watch her.

-found out she's been on and off her medication because her boyfriend doesn't believe in medication/won't be with her if she takes it.

-got into a huge fight out of no where with me once my dad finally came home basically telling me she can't be my friend because I have bad health/am 'too thin' and she doesn't know what to tell people when they ask her why I'm so thin. Also told me I'm weak and don't know how to get through obstacles. Told me my boyfriend was the worst choice again because of not making much money(I told her countless times how I don't care about money. How it's the way he treats me that's the most important to me) At the end of the conversation, basically went back to complaining about her boyfriend

-Unfriended/blocked me on Facebook as well as sent me a message telling me how I was an awful friend because I didn't ask about her in a week and a half and telling me how I'm never there for her. Tried to explain to her how I'm stressed out and busy taking care of my sick dad > went back to crying about boyfriend and begging me to come over to help her

-Boyfriend broke up with her for good. Weird phone calls started. Telling me that people are out to get her and that because of her family people want to hurt her. How she can't trust anyone. No longer on medication/seeing therapist

-Went back to university. Started claiming classmate wants to kill her because he would ask her questions about class work. Had a nervous breakdown and called police on him. Police told her to just return to class and try to calm down.

-Ended up in hospital for mentally ill/suicide watch. Visited her everyday and she blamed being in the hospital on me claiming I was not there despite calling her and asking about her everyday prior being in the hospital. Her mom visited her only once for 20 minutes. Would not tell me why she ended up there.

-couple weeks later, ends up in hospital for car accident. Her mom calls me while I'm at work asking me to go pick her up and return her home. Won't say where she is/doesn't bother to visit her daughter. Also tells me I need to continue being there for her daughter and that she's been acting strange. (The mom barely speaks English so I didn't get very far with her). Went to pick her up and nurse pulls me to the side to tell me she needs to stay on her medicine because she's been off it. Again no one is telling me what she has or what's going on. I talked to my friend and she refuses to tell me anything. Just told me the woman who hit her car was out to get her and wanted to kill her.

-Texts me to tell me out of no where people are out to get me and want to hurt me at my job. How we both own buildings and that's why people want to hurt us and how being her friend puts me in danger.

-Now the newest one is after screaming at me several times after hanging out the past several weekends for absolutely nothing(she's off her medication again and extremely short tempered) she called me last night to tell me her new roommate in her mom's house wants to kill her and is creepy because she asks her questions about the house or eats in the kitchen. When I ask her did she do anything to make her feel in danger, she can't answer me. All she says is that she's creepy nonstop. She even called the police on her telling them the same thing.

I really don't know what to do anymore. I don't even know how to answer because she's been so short tempered that I'm worried she'll just snap at me if I bring up that maybe it's best she start taking her medications. She expects me to drop everything I'm doing even if it's taking care of my sick dad to be there or else I'm to blame/an awful friend. Her mom is not there at all for her. She's rarely home. She's always out with guys. I feel like she's dumping her daughter on me and it's a situation that I feel like her mom would be much better suited to speak to her about. What do I do?? I'm struggling as it is with my own life. I feel selfish in a way, but I'm getting frustrated with her since this is becoming a weekly thing where I'm expected to drop everything I'm doing to help her. She's even asked me on my boyfriends birthday to go hang out with her despite telling her in the morning it was his birthday.