I am 21 and for the last couple of days i've been getting a constant tightness in m chest. I've made a doctor appointment but they cant see me for a month and i've been looking online for ideas as to what it can be but i'm an all round healthy girl. I've never had problems in the past and my family has never had a history with heart problems. I'm probably just overreacting but it just doesn't feel right and it makes me a little worried. Plus, it really hurts. So any ideas you might have, I would muchly appreciate. Thanks a lot.