15days back i suffered with gas pain and left hand also paining and that comes and goes.i consulted gas specialist and he  gave medicine . Now I recovered the gas problem and feeling better but hand pain is travelling around from head to neck,shoulder,hand fingers and leg fingers also and some times upper back also only left side of the body.i need to know is there any problem related to heart.. recently I have taken ECG also and doctor said report is normal and he is saying that due to anxiety this pain coming..