What speciality type of doctor should i visit if i am extremely fatigued all day, almost can't control falling into sleep, feeling feverish many times a week?

See below: I would start with your family physician. If you don't have one then see a primary care physician(Internist or Family Medicine). He or she should be able to order the appropriate tests that might be needed to diagnose your condition. Seep Apnea would certainly be a very common cause for your fatigue and somnolence. For information on this go to http://bit.ly/1HbvipP