You should get an evaluation whether or not your heart is pumping effectively. If it is not there may be blood backing up into the lungs and fluids leak into lung tissues, and that will cause a DRY cough. I'm not sure of the significance or cause of the expectoration though and may rule out a heart issue?! If there is right side heart failure, that can cause edema of the lower extremities and left side heart failure can contibute as well. You should consult with your doctor to rule out any serious condition.
thank you for your response
Cblmn, hope you are recoverying well. Take care.