I ve had tightness in the chest and achiness--not severe pain--off and on for several days. I have connective tissue disease, heart murmur, and clinical depression (so I took an extra anxiety med to see if it might be a panic attack--I ve had those, too). I had pleurisy as a teen. It almost feels like that. I m recovering from a bout with the flu (fatigue followed by congestion and lots of coughing, now tapering off). Should I go to the doctor for this or see if it clears up in a few more days?