I was cold last night
I am cold tonight
she is drinking a glass of water.
She drank a glass of water
He is sick today.
He was sick yesterday
He is hungry. (now)
He was hungry
I don't take medicine for my headaches.
I didn't take medicine for my headache.
I had a cold last week.
I have a cold.
He has a temperature today.
He had a temperature yesterday.
he had a terrible cough last night
He has a terrible cough!
she is taking medicine for a sore throat.
she took medicine for a sore throat.
I usually have pasta for lunch.
I had pasta for lunch yesterday.