Physical or mental tires me quicklyamd very easily. Even if not done much work. There's sensations in my head, I get short breath and upper back starts aching. All three things happen at same time. My eyes become heavy. I just feel like lying down with closed eyes and rest. All this happens very frequently. I can't walk much too. Sunlight also troubles my eyes .Eyes and head starts aching. I also have headaches once / twice a month.