 [ Symptoms ] why do i get so tired after exercising  i have not gone out and done physical activity for about a month so i just went out for a nice and easy power walk for about 50 minutes i come home and suddenly i just feel sluggish and exhausted i do not starve myself i eat when i am hungry and when i need to eat i get super tired and when i come home i just knock out because i get so tired i do not like to exercise when i have school it is been affecting my health and my body i really want to exercise daily help please <negative_smiley> [ Disease ] like asthma eczema seems to run in families certain genes make some people have extra sensitive skin and certain environmental factors    like stress    can trigger an episode of eczema eczema is also caused or worsened by contact with irritants in common substances such as woolen and synthetic fabrics soap and other agents that dry skin heat and sweat eczema can also be worsened by dry skin since eczema may in part be an internal response to stress any emotionally charged event    from a move to a new job    may trigger a flare up