I recently lost my dad to cancer. I am only 18 years old and since my dad past away I have lost optimism. I wake up late in the morning, I am always tired, I yawn practically all day, and at night I fall asleep fast. I feel as if i have no energy and its not that im lazy but when I want to do something I get started but then I start getting weak and tired, I don't know what is wrong with me. What can this be?
You are probably depressed, which is understandable when you have lost your father. You need to mourn the loss of your father, before you can go on with your life. Let a medical doctor examine you to find out if you have any medical problem like iron deficiency that can make your condition worse.