My 54 year old mother has memory loss and confusion. Doctors are not really helping.They say she has dementia/Alzheimer’s, I’m lost.

It hurts me to write this!! I know that none of you are doctors but I just need some advice. Please leave the criticism. Ok so last year around August I noticed some things happening with my mother. I noticed she had anxiety and was panicky. She sent someone a text and it didn’t make sense. She came home from work and went to sleep when she woke up she said she missed work and asked what time it was. She eventually started crying and the next morning she didn’t remember it. There was also another incident where a cousin was explaining to her what time he was going to pick her up to go to the football game and she didn’t understand what he was saying. Now after these two episodes she went back to normal. Eventually, she started having diarrhea and was going to the bathroom 4 to 5 times in the mornings, she started having abdominal pains, lack of appetite, and weight loss and the confusion got even worse. She would say that she was tired even on her days off from work. Turns out she had an h pylori infection. She took antibiotics the diarrhea and abdominal pains went away. They say that H Pylori can cause absorption problems and she became chronic anemia and she is on iron medication. She had a MRI in November then the doctor had some insurance problems so I wasn’t able to see him and the primary doctor made appointment with another neurologist. Maybe it’s me but these doctors are not helping!! This neurologist won’t stay in the room long less than ten minutes. Says she has dementia but it’s mild performed an EEG. The nurse called says EEG was abnormal and goes to his office he says it’s nothing to be concerned about. Wants to do a long term EEG at home. My mother was hysterical as she couldn’t sit in one place for that long to do the EEG so we had to cut it short and he says it came back normal. We saw him again a month later she was different as things had got worse. I asks some questions he says unless it’s an infection it won’t get better and he says let him study it but what exactly is he studying???He writes prescriptions and that’s it does not explain anything I need to do. A month later she has an actual seizure when she has never had one before. MRI does not show anything. Afterwards she started having real bad headaches in the mornings that wouldn’t go away with regular medication. That next month she had another seizure and was put on seizure medication and it helps with the headaches but she still has headaches sometimes. Neurologist didn’t explain the headaches or seizures just prescribed medication and no additional testing. The primary doctor recommended that I go back to the other neurologist as the insurance issue had been solved. This doctor was very rude with no bedside manner but I have to stick with him because he is a big doctor and he can do more for her than the other doctors. However, I did see another neurologist today because it’s about yo be Holiday time and I just want someone that will listen and help. He tells me I have two other good doctors and why was I there. First they are not good doctors because it has been 7 months and no one advised me on what I need to do how does a doctor speak for other doctors when they are not even a patient. So this doctor has his nurse perform a 15 minute test where she asking her to perform some tasks and asks questions. The doctor comes back in and says she has Alzheimer’s and it is progressing rapidly to enjoy the time I have left with her because eventually she may not be able to swallow food. Says the seizures are caused by the Alzheimer’s and that she is going to need a caregiver. He asks about her parents. Her dad is healthy and in his 70s her mom died in her 50s from ovarian cancer and he says if her mom had lived longer she could have had it but no one else in the family has had Dementia or Alzheimer’s. He says an MRI wouldn’t show it but a Pet Scan would. He said he wouldn’t waste time getting the Pet scan. I’m lost for words!!!