Is the child okay, saying they feel dizzy as soon as they wake up?

I am worried because lately my child sometimes says they feel dizzy when they wake up in the morning. They say they feel dizzy for a brief moment right after waking up and then feel better after a while, but since this has happened a few times, it is bothering me.

I am wondering if this is because I woke up suddenly, or if it could be related to issues like anemia or blood pressure. I would also like to know if these symptoms can appear as children grow.

I am worried whether this is due to skipping breakfast, or if it could be caused by my sleep or lifestyle habits. If anyone has had a similar experience, please advise on the reasons and whether I need to visit a hospital for tests.