nagging feeling (to have a) [exp]

Meaning:

• to be mentally busy and have irritating thoughts for a period of time.

Examples:

1. I have a nagging feeling why he made fun of me in front of my friends.
2. I have a nagging feeling that I missed that wonderful opportunity last year.
3. There was a nagging feeling in the back of her mind that she had overlooked an important date.
4. I have a nagging feeling that we’re missing an important detail in this report.
5. After the meeting, he had a nagging feeling that he didn’t explain his point clearly enough.
6. She couldn’t shake the nagging feeling that someone was watching her.
7. I have a nagging feeling that I forgot to turn off the stove before leaving the house.
8. Jack has a nagging feeling that he forgot to lock the door this morning.