Use "splitting headache" in a sentence

1. I've had a splitting headache.

2. I have a splitting headache.

3. Ken : Well , I feel tired, I have a splitting headache and stomach ache.

4. When he woke up he had a splitting headache and his vision was blurred.

5. You might have a splitting headache, or a slipped disk, bad breath, a toothache, chronic gas, dry lips, or an ingrown toenail.

6. I often have splitting headache, and it is painful that head carapace has to be felt painful, but had not contused . Excuse me at this moment what reason?