My 89 year old mom is complaining of brain fog. What could be the cause?

jwellsy reminded me of something .... brain fog when a storm front is close by. Both hubby and I are sensitive to changes in barometric pressure, so don't ask us anything important when that happens :P

Does she also have several very painful spots on her body?
Is it worse the day before a storm front moves through?

My wife first started having brain fog as part of the onset of fibromyalgia. When the brain fog and fibro would flair up, she couldn't get out of bed.

If this brain fog has come on sort of suddenly then first and foremost get her checked for a UTI, which often in elderly women has no symptoms other than changes in cognition and behavior. It's easy to discount this as a cause to her brain fog problem, easily treatable if she does have one.

Does the BP med she's taking contain a diuretic?

I was taking one about a year ago and it sent my calcium way up, which causes brain fog.

Mom was taking meds without checking her bp. Cancer Dr. gave us systolic/dystolic numbers to go by to not take meds. We check bp 3 times a day. Her bp yesterday was 116/70, 129/70 and 127/70, so no meds that day, but still complains of brain fog. Not so sure it has anything to do with her bp

Take your mom to the doctor with her complaints. You should not be making medication changes yourself based on her symptoms and chalking them off to the BP meds! That's dangerous. Call her PCP right away.

Good luck to you.

This whole medication thing is I hope being done under MD supervision?
Are you measuring BP daily: Do only with an arm monitor and I recommend Omron (Amazon, about 35.00).

You use the word brain fog. Has your mother had Covid in the recent past? Chemo? Anything know to cause this?

What does your mother's MD have to say about this?