What should I do about care and placement of my mom who’s 86, recently diagnosed with Afib, and has undiagnosed mental issues?

My mom has been living independently & was diagnosed with Afib a week ago & spent several days in the hospital. She has always had a strong personality…based on things I’ve read over the years I think she has AADHD, possibly bipolar, some OCD characteristics added with a touch of NPD and a hoarder lifestyle. She’s a night person & is highly critical of everything, especially today’s America, immigrants; her glass is always half empty. She’s surprised she’s still living & has wanted to be in heaven for the past 20 years but is not suicidal. We live on opposite coasts. She has no friends. She has only taken meds for HBP & glaucoma until last week. She has never wanted to take anything, wants no invasive procedures, distrusts most people. When unhappy, has outbursts of not so nice comments & is usually unapologetic about anything she says.

Last week she was feeling unwell, had been off & on for a few weeks. She went in to see her Dr. last week who had her transported to the hospital ER due to her heart rate. She was diagnosed with Afib & stayed in the hospital for several days. Since she lives alone they wanted to send her to rehab for 1-2 weeks. I had already scheduled trip to see her as I hadn’t seen her since Nov/2019 due to the pandemic. She didn’t want to go to rehab & was agitated. I bumped up my trip & went directly to the hospital from the airport where she was then discharged since I would be here for a couple of weeks. She left with 9 prescriptions (digoxin, cardizem, lasix, lisinopril, lopressor, xarelto, protonix, flonase, and latanoprost. They also prescribed Ambien but she refused to take it in the hospital so it wasn’t filled when she left. She didn’t like feeling dopey.) She takes 1 of each pill in the AM.

For years, I have been calling her twice a day, once in my morning & once in my evening to make sure she’s ok & to remind her about her eye drops at night. Over the past year, she has noticeably been more forgetful. She’ll ask the same question 2-3 times during our calls not recalling she already had done so but is pretty much able to carry on a conversation. Since I arrived & have been staying with her, other things are more noticeable. She has always wanted to go shopping, one of her favorite things, but now has no interest in going. Not new…She watches TV with the sound loud in the middle of the night, during the day and falls asleep having an abnormal wake/sleep schedule. She’s put off getting lab work done for over a year, so I don’t know if there are other medical issues. She lost her sense of smell/taste before Covid. Eating no longer brings her pleasure unless it’s sugary.

Yesterday she said she thinks she should go into a nursing home as ADLs? are too much for her. This from someone who doesn’t like to be touched along with her OCD traits (a lot of hand washing, any clothing that touches the floor must be rewashed, checking to make sure doors are locked, will only drink spring water and doesn’t want to consume anything in the last inch of a container due to heavy metals, etc. BUT isn’t too concerned with having piles of newspapers, magazines, mail (half unopened), plastic containers, tissue boxes, etc. gathering dust all around her space.)

Her remark about the nursing home surprised me since I thought she’d have to have more advanced senility in order for me to get her to go into one (her willingness). I don’t know if this is the best place for her, if there are other considerations I should consider that I don’t know about or how I should go about next steps. Given her personality, I fear she could be kicked out. She always rented rooms in other homes but the landlords have had to pretend they were selling their home so she’d move due to hoarding. She’s been in her own apartment home since Sep 2019 so I wouldn’t have to deal with the complaints. I do not have any signed authority but do make sure she has what she needs and insure rent, insurance, etc. are paid timely.

Any advice is appreciated.