I very tired that i alway go to bed early because i'm feel sleepy. also i have some chest pain. my dad pass away so it been stressful , what wrong?

Depression or grief: Please seek a full medical workup to rule out organic causes of your malady. Also see a psychologist or psychiatrist for an evaluation for depression or ptsd.If this does not help, see a sleep specialist for an evaluation for excessive daytime hyper somnolence. Best wishes to you!

Loss of dad: I am empathic to your loss of your dad. This stress is causing depression with symptoms of being tired, feeling sleepy, and chest pain. Psychotherapy and anti-depressant by a psychiatrist will be beneficial.