But they often have symptoms of some autoimmune disease, like being tired all the time and pain. 1  CFS can cause you to be very tired, have trouble concentrating, feel weak, and have muscle pain. 2  Symptoms of CFS come and go. 3  The cause of CFS is not known.
Best Answer: A sty is a noncontagious infection of the eyelash follicle, it can be caused by effects of medication, hyperventilation, stress, anxiety, drinking alcohol,Styes are very common and are not a serious problem. Most will go away on their own. i really hope this helps.
Eye stye can be caused by infection, stress and malnutrition. Too much stress can lead to eye stye. You can take some antibiotic medicine, use some eye drops, foment your eyes to lessen the discomfort and tiredness. Try to relax yourself and take some good rest and avoid eating the food that is spicy or too sweet.