My Wife Is 45 Years Old. She Has COPD. Asthma,

My wife is 45 years old. She has COPD. Asthma, social anxiety, trauma from a surgery gone bad and is a chronic pain patient. Two weeks ago she had the worst COPD attack you can imagine. This followed a doctors visit for a bad cold she had for a week prior. It ended up being nemonia. Her doctor prescribed anitbiotics & steroids to strengthen her lungs. They also took a sample of the flem she was coughing up. We made it to our front door coming back from the appointment when she had to sit down on the stairs & couldn't breath. I called 911 and they took her to the ER. After 3 hours of breathing treatments and oxygen, her oxygen went up to 92 from the high 80s. We arrived at the hospital of our choice at 1am Saturday morning. She stayed in there for 5 nights, 6 days. They gave her strong antibiotics through the IV along with steroids and oxygen. After 3 days, they discovered she had a staff infection. That was then treated and she was released once her oxygen was 92-94 consistently without oxygen. They gave her prescriptions for antibiotics strong enough to kill the infection, steroids to continue strengthening her lungs and a nebulizer to take home. They didn't think she needed oxygen at home and has never had it at home. Her breathing attacks are often the result of a panic attack and panic attacks often worsen the breathing attack.

Now, she is talking in her sleep nearly all night at times, she's nodding off frequently during the day and mumbling that doesn't make sense and forgetting nearly everything that takes place during awake time. She gets days confused, thinking for example that yesterday was a day that took place last week and forgets hours at a time and even mornings, days and evenings at a time. Her psycologist is out of town for a week. I'm terrified to say the least. And she is not by a long shot the easiest person to get to go to the hospital. I know she needs to get into see her primary care doctor but she is a resident doctor and I'm not very trusting of her especially after the last visit when she should have been sent directly from the doctors office to the hospital. Can you make an educated guess of what might be going on? Mainly the forgetfulness and nodding off.