Suggest Treatment For Extreme Fatigue Due To Stress

HI. I have a very busy and intense volunteer schedule that requires leadership of a national board, research, membership on two other boards and travel is required frequently. I am lucky enough to get away for holidays frequently, however, post Christmas I am feeling overwhelming fatigue that sleep does not seem to help. As well, I find that I have very low tolerance for things going array, even the simplest of things. I am frequently close to tears. I suspect that I am exhausted, is that a possibility?