I have a heaviness in the upper chest, between my breasts, that leaves me feeling weak. This can occur at any time, but it is usually after I wake from a nap in the recliner or upon arising in the morning. I use a C-PAP in bed. If I eat a meal at lunchtime, I have no appetite for an evening meal. I am a diabetic, so I know that I should eat something. Could these symptoms be related to gall stones? I have been diagnosed with the presence of gall stones on a CAT scan, although that was not the purpose of the scan.