I Am 57 Years Old And Am Very Weak. It

I am 57 Years old and am very weak. it is hard for me to walk. my legs are wobbly and get headaches. I have mytral valve prolapse and had tacacardia the drs found the area in my heart that was causing the problem and did catheral ablasion when i was 38. I get headaches and floaters. have and underactive thyroid and asthma. I rarely leave the house. I cant make my dr appts because of transportation issues and cant get from the car to the drs office.