Hello my friend I am Dr.Arianisa Thanks for your question on HCM Tiredness is much more often caused by psychological and social issues, including stress.Lifestyle and social causes of tiredness may include work, family issues, bereavement, the break-up of a relationship or a life-changing event such as moving house or getting married. Emotional shock can also cause tiredness. Poor diet, too much coffee or drinking too much alcohol can also cause tiredness. But some physical causes are: 1.hypothyroidism 2.anaemia 3.diabetes 4.heart failure 5.bowel problems 6. chronic fatigue syndrome Your doctor will then check whether there are any physical or psychological causes for your tiredness.If the cause of your tiredness isn t obvious it is worth seeing your doctor. Eat regular meals and healthy snacks. Avoid having large meals and avoid skipping meals because this can make tiredness much worse.Anything that helps you to relax and reduces stress will help you to feel less tired. Hoe you get better soon Best regards