While Working Out This Morningi Developed A Sudden And Severe

While working out this morningi developed a sudden and severe headache that brought me to tears and make me nauseous. It has gotten better with rest but still hurts 4 hours later. I'm not sure if I should go to the ER. I have a history of headaches but nothing like this. I doubt it is related but I have a pineal gland cyst and a narrow carotid artery.