How to use "headache" in a sentence

"I've got a splitting headache."

Just a headache

After a while, I Harris said, 'I've got an awful headache

This morning I'll be your only company for breakfast since my sister Laura is in her room with a headache

The Count replied, 'Later, when the ladies are asleep.' I said that I had a headache and went up to my room earlier than usual