A 35-year-old man presented to a physician's clinic with a complaint of headaches. Medical history: The patient had bilateral, intense, painful headaches for a few weeks, and it increased every time he went to the gym and lifted weights. According to him, when he stops exercising, the headache diminishes within nearly fifteen minutes. So, he has stopped weight lifting weights, but he can perform cardiovascular exercises without a headache.

What is your most likely diagnosis for him? *This case is from the Editorial Team of Docplexus and is meant for educational purposes only. Source :  Medscape Neurology The correct answer is posted in the comment section below!