When I slept this afternoon, I sweated when I fell asleep, and I was dizzy when I woke up. What happened? I am a boy of 15 years old.

First of all, there may be two situations in your situation.

First of all, the sultry weather makes you sweat.

When you sweat, salt will also be lost.

In this way, in the case of insufficient salt in the body, there will be phenomena such as accelerated heart rate, dizziness, vomiting and weakness.

PS: That's the case with heatstroke.

The second is that you sleep at night.

That's a sign of weakness.

Hypoglycemia, anemia, etc. This phenomenon occurs when you are weak.

Sometimes sleep disorders can also cause dizziness after waking up.