I'm feeling really uncomfortable with my chest. I've got this back pain, and it feels like there's tightness there too. Initially, it was on the right side, lower down, but now I feel it on the left side, just above my stomach. It's not exactly painful, more like a feeling of tightness. I've also been having some heartburn. Should I be concerned about this, and what might it be?

take tablet pantop for 5 days