Heart issues or Anxiety. Please help.

I am having pain in left side shoulder and neck side, also feeling pain and weird feeling near heart I am having pain left side since last year October. It's on and off pain is there for some days then it's not there But this kept in mind something is wrong with my heart. I have done 4 ecg since September to March plus 2d echo in November and tmt test in March. All reports came normal. This test are done by cardiologist. He ruled out this pain is due to anexity. After taking medicine for sometime getting relief from pain, but it's come again after somedays. This is happening since month. Need to know do I know need to take any test again. Or currently I am.taking ciplar 10 as suggested by general physician should I continue with that. Please help. Thanks