My father's had a problem with feeling "muzzy" (wooly-headed), for quite a while - starting last year, and becoming worse.
Later, around September, suddenly having a drink of alcohol caused a "bad head", when it was fine before. My father hasn't been able to drink alcohol since without the same problem appearing in the morning.
Just before Christmas, things seemed to get worse - he now gets frustrated at simple tasks, like cooking a sunday dinner, or finding the passwords for web sites. Also recently, he has been having migraines, which he never had before. He seems to walk a little unsteadily, "walking like an old man". Mainly it's the wooly-headedness. It seems to be worse in the morning and evening.
He's been visiting his doctor for a couple of weeks now, having the blood tests described above. Can this really be cholesterol, as the doctor says? I never heard of any symptoms of cholesterol before like this! Thanks!