@kovamk

Hi, The TIAs are causing problems because of a temporary disruption of a blood flow to an area of brain.
But that can happen for many reasons, not only physical blockage, burst plague, or a clot.
It can be a sudden drop in blood pressure that recovers after a while.

My wife - 79 - is having speech problems for the last few days. It just happens suddenly several times a day. She can't put a sentence together, just mumbles words and does not answer my questions.
Two days ago she had a CT of the brain and ultrasound of carotid arteries - all negative.

She has been taking blood pressure drug "telmisartan" for high(er) BP, for the last year or so. Bujt it lowers the BP too much. Older people with narrowing blood vessels need more pressure for the blood to flow.
ChatGPT tells me that this drug can cause sudden drop in BP in old(er) people.
She did not take the tablet today and wants to stop taking it for a while to see what happens.
A few hours ago she had the attack again. She was very deppressd and sad. Now she seems OK.

I will urge her to ask for referral to a cardiologist to check the heart.
The GP also recommended 100mg of aspirin at least 3 times a week - just in case. It helps with blood flow.