Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry because you have already taken appointment for a physicians evaluation of your health condition. There could be underlying factor such as anemia or diabetes which causing the tiredness and lethargy. But more than these underlying causes, anxiety could make you more tired than the actual. Be active and do your normal jobs with courage until you need yout doctor. Whatever there is, they will find out and there is treatment to cure. Please do not worry and do not be anxious. If you still need my assistance in this regard, please use this link. http://goo.gl/aYW2pR. Please remember to describe the whole problem with full detail. Hope this answers your query. Available for further clarifications. Good luck.