My husband takes oxycotin 12 hour release for chronic pain and is experiencing dizziness and nausea . He has had surgeries for gallbladder,both carodid arteries, aorta repair, stents in his illiacts, open heart with pig value ,2 stents in heart and esophageal cancer. He s presently using oxygen. This started after his left carodid surgery. His ribs are also frozen. He takes coerig,Lipitor,imdur,Ranexa,plavix,lisinopril, neurotic, Xanax ,nexeum,celexa also.