I started getting mild sickness after eating about 1 year ago. it has now progressed?

I am 57 , male and have osteoarthritis left knee, emphysema, sleep apnea and depression. my meds are paxil, buspar, Lisinopril and lovastatin. my symptoms now are stomach issues. I started getting mild sickness after eating about 1 year ago. it has now progressed to a full feeling all day. not bad in the morning until I have my first cup of coffee then feel full. I put off eating until later in the day because once I eat I become overly full and feel kind of lethargic the rest of the day. my bowel movements seem normal. I have been to my doctor and had referrals to gastro doctors but am on disability and medicaid. getting a doctor is damn near impossible. closest that would accept me was over 2 hours away. thank you