To the guy on X asking about Trump's gait, that's a clear sign of frontotemporal dementia. Don't take my word for it, please, have a search for yourself. That's not my take. It's the take a a great many doctors who have talked about this online.
Temper is another sign of dementia. Ex-gf worked the midnight shift at a home for elders with dementia, Alzheimer's and the like. Not all, but most could get angry, if not violent, at the drop of a pin.
This speculation of him having had a stroke (maybe a tiny one?) and Alzheimer's fits neatly under a diagnoses of dementia. Again, do not believe me on this, look for yourself.