Hi I am almost 73 years old, have 3 stents in my heart area, suffer from COPD emphysema, have type 2 diabetes, and am currently experiencing extreme weakness, fatigue and thirst. Have been getting worse over the past three to four days. I am sleeping approximately 14-18 hours per 24. I get up for 2-4 hours and go right back to bed and sleep for 2-5 hours. It is getting very depressing. I can't get in to y doctor until the 31st of May. Any thought?? I am currently on oxygen 24-7.