A few comments for you...
CHuckiecow, it is healthy to have a BM once to twice a day. That is great! If you have been chronicaly constipated, and are now releasing that old matter, some nasty toxins may be getting into your blood. This is known as a healing crisis. Increase your water and fiber intake, and it should subside.
Sometimes psychological processes are felt physicaly. If this is so, try breathing in to the pain tension or discomfort, whatever it is. Breath in to it with curiosity. Notice what comes up, or if it changes. Do this until there is a felt shift.
These things also may be coincidental. There is a chance that you need medical assistance, and if so, please seek it promptly.
The heart and lung things sound a little like panic attacks too. The morning feeling though- panic attacks sometimes have a feeling of unreality or sureal-ness. A good doctor would be able to determine what is going on...
vitaman