Since your headaches and watery eyes affect your studying, they may be caused by eye strain or allergies. I highly recommend visiting an eye specialist to check your vision, as uncorrected eyesight is a common cause of study-related headaches. For temporary relief, you can use over-the-counter pain relievers like acetaminophen or ibuprofen, and lubricating or antihistamine eye drops if allergies are suspected. However, because this is a long-term issue, please consult a healthcare professional for a proper diagnosis and a tailored treatment plan rather than relying on self-medication.