My grandfather

Last week my grandfather went to the hospital.
I don't know why but I think it's kind of like he almost had a heart attack and a stroke together.
Don't worry though, he's fine
He was just going to brush his teeth and then suddenly he felt weak.
We got a chair for him and gave him this oxygen tank thing. We use it if he runs out of oxygen.
Yesterday he had an endoscopy.
An endoscopy is an examination to check the function of the organs of the digestive system.
If you don't know what the digestive system is, search it up because I'm not telling you.
Turns out he has anaemia.
Anaemia is when you have only a little bit of blood
But my Aunty ( who is a doctor ) said that hopefully he will come back tomorrow.