Hello Welcome to HCM. I have read your query in detail. You have problems of feeling irritated, tiredness, disturbed sleep, headaches and decreased energy. These symptoms point towards a depressive disorder or this may stress induced. In such cases, drugs like fluoxetine and escitalopram are very helpful. They will take care of all your symptoms. Also, you can practice relaxation exercise like deep breathing and meditation or yoga. Please consider visiting a psychiatrist for further evaluation of your problems and treatment. Hope this helps you. Thanks.