My heart started to hurt while I kept working on my computer for a whole night. I thought I will go away if I have some rest but it didn t. It hurts in the left upper side of the heart. I can t breath all the way because it hurts. It also hurts when I move from one side to the other or if I do sports. It s not a strong pain but it causes me discomfort and it s been like this for 2 days already. Any ideea what it could be ? Or what to do to make it go away ? By the way, I m 24 years old. My doctor is on holiday in Greece. The University clinic has a short program (from 9 to 12 AM), I will try to get there tomorrow if the pain doesn t go away but I m in the middle of an exam session, I should graduate next week if everything goes well! Thank you for all the answers!