Reply to V. Yetimyan M.D.'s Post: Due to swelling in my ankles and legs, physicians began running tests. CAT-Scan was clear, lung x-ray was dense with lots of markings, echo-cardiogram was fine, then a sleep study test showed 65% oxygen absorportion 30% of the time and 80% absorporation 30% of the time; with 15 sleep apneas in a 7 hour period. Started with a C-PAP and due to low numbers, changed to Bi-PAP and increased pressure to 18/7. Absorbtion is now 90's%. I quit smoking 14 years ago. I am on Lipitor 80 mg; Welchol 625 mg/x4; norvasc 10 mg; and HTVC. Chest x-ray was in June. The bi-pap has not reduced the swelling in my legs, however, exercise does. I am obese; 4'11" and 222 lbs.