Hi.. Left sided chest pain could arise from a heart condition and could be a serious problem.. So consider getting an ECG and a complete heart evaluation.. You may need a few blood test to see if there are any other risk factor that could cause similar problems.. Reduce spicy food consumption and caffeine consumption... You may consider talking with one of the specialist (cardiologist) available on this website for any clarifications. It can probably help in reducing your nerves..
The link for this would be http://www.healthcaremagic.com/specialists/Cardiologist/Dr-Gopi-A/2