I keep feeling dizzy, and I've got a headache.
How long has this been going on?
It started yesterday.
You've been studying too much recently.
I have no other choice. Next month will be the most important exam of this term.
I can understand that. But anyway, you should take better care of yourself.
What should I do now?
I think you should stay in bed for a little while and I will call the doctor.