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.
The involved eye would also water often. Recurrent styes are often due to bacteria that have not been managed accordingly. It is of great importance to know the causes of recurrent styes for their proper treatment. The following are the usual causes of these: Bacteria buildup. Styes occur when bacteria get into the oil gland, just like pimples in other face areas. However, these only arise in single location and that is in the area where lashes grow at the end of the eyelids.