I could've been a TIA, transeschemic attack. I've been with people having those and that is what this sounds like. It means that blood flow was briefly cut off but resumed. Has the doctor not mentioned that possibility.
Yes, extreme pain could cause your mother's reaction. Extreme pain is very difficult on one's body. She must take the pain medication.
I've had a lobe of my lung removed because of cancer. It's very important for your mother to take the pain medication, dilauded. She has to keep on top of the pain so that it doesn't get so bad. I was on oxycodone and oxycontain for 3 or 4 weeks and did not become addicted. Taking the medication as prescribed will not result in addiction. Addiction occurs when the patient doesn't follow directions.
She should begin taking the prescription pain medication every so many hours as instructed. Once her pain subsides some she can then skip a dose some of the time but must take it before the pain gets severe again.
My cancer was also non aggressive. It is called a carcinoid. I've been cancer free for 10 years. If you don't know the name of your mother's cancer ask. If it was a carcinoid, those infrequently return.
Talk with your mother's doctor so that you can be less frightened. Ask your mother to give permission so you can do that.
I googled dilauded and seizures as well as weakness can be a side affect. If she'd take a pill or perhaps too many pills then they may've caused the symptoms. A seizure can have those symptoms.
I reluctantly tell you this because it's important for you mom to take the medication and she's already afraid of it. It is very important to follow doctors directions. I doubt that this would've happened if she'd been doing that. It's more likely to have happened if she took a pill, forgot she took, took another one and perhaps another one after that.
Perhaps the doctor could give her a different med, one that she'd feel more comfortable with. And perhaps you need to monitor her taking the medication.
As to being chronically tired, does she exercise at all, such as taking walks? She will not regain her strength unless she does this. At one month post surgery I was walking many blocks every day.
I have a friend who complains of chronic tiredness. She does nothing exercise wise. She even has others do her shopping for her. Doctors have told her she must walk to gain energy and she says she's too tired to do so. She won't do it and so pays the price.
After your SWH: All those typical tests will only show a stroke if she suffered brain damage from one. My father had a stroke, spend several days in the hospital but had no after affects. Those tests would not show that he had a stroke.
And a TIA is not the same are a "real" stroke. A vessel is briefly plugged and then the plug is dissolved and the blood returns to a normal flow. It's not likely that one TIA would show up in a CT or MRI.
They suggested that what had happened is that he had a slow bleed from a vessel which then sealed it's self up. He didn't have any more strokes and lived several years afterwards.
Yes, you should trust the doctors. Sounds like more than one doctor is involved and they wouldn't all be wrong. Sounds like you need to ask more questions of the doctors.