Dear Welcome to HCM We understand your concerns I went through the problems you are mentioning. I suggest you to check up your blood for its contents. This is essential to find the exact causes behind your problems. Consult general physician for the same. Your tiredness, lethargy, blurred vision, poor concentration etc should have lead to your anxiety. Almost all people wants to be lazy or wants to sit idle. But their duties and responsibilities make them do their work. Therefore tiedness is part of life and I think you should overcome it with proper nutritious diet. Such tiredness is also age related. But nothing to worry. Being energetic helps being more energetic. Hope I answered your query partially. You can contact me for further help. Good luck.