My doctor is pushing me to buy some ring-shaped sleep apnea monitor. I don't think I have CFS or sleep apnea (I'm tired because I sleep like shit because I dri

My doctor is pushing me to buy some ring-shaped sleep apnea monitor. I don't think I have CFS or sleep apnea (I'm tired because I sleep like shit because I drink way too much caffeine before bed), but it's a possibility not explored in physicals.