My dad is 67 yrs old, approx. 300 lbs and has been experiencing very swollen ankles and lower legs. It started when he began falling asleep in a chair and his legs weren't elevated. His one leg feels warm to the touch and is causing him a lot of pain. I can't get him to go to the doctor. Do you think this sounds serious and that he needs medical attention? If so, any suggestions on convincing him to go? Thank you!