I feel lazy and sleepy all the time what tests do l have to do and how to energize?

Many: There are so many causes for this. See your doctor to get blood tests ruling out easy stuffs like thyroid problems, anemia, sugar problems, electrolytes/liver/kidney functions. If you are overweight, you need to lose weight with proper diet/exercise regimen. Ostructive sleep apnea is very common and is underdiagnosed. Your doctor can see if you are at risk and order you a sleep study...

See your doctor: You should go see your doctor. Get your thyroid, vit d level, and hormones (if indicated) checked. Also check for anemia. If at high risk, ask if you could have sleep apnea, heart disease or lung disease. Finally, ask if you should be screened for depression. Ask if you are at a healthy weight, and make sure you are exercising at an appropriate level for your age. Fatigue has many causes.