Hand and chest pain. Pains will go away?

Hello doctor, I am 30 yr old female. For last Two months i have been having left hand along with slight pains on either sides if chest. Mostly when i work too much or lift much weight for little long time, that corresponding hand and chest hurts. I am software engineer, dont have stress, dont smoke or eat nonveg. My bp was normal few days back, cholestrol 150, weight 56kg, no past history of family for heart disease. Also, at night i have too hot feet and hand, feel hot in throat too. I hav check ECG, 2d echo, they were normal, TmT was negative. Is it something that I should worry or some deficiency. If deficiency, when will the pains go away? It's almost 2-3 months now, and the pains make me concerned. Pains are not too unbearable, its like a sensation, pull, sometimes shooting. It mostly starts from hand when I lift weight or ride a bike, slowly it hurts near chest a little and goes away when am off the weight. Pls suggest what to do, when the pains will go away?