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.
Learn to recognize styes. Styes can be confused with chalazions, which also appear as a bump near the eye. The treatment of a stye and a chalazion is the same, so it's not a problem if you can't tell them apart. A stye or hordeolum is caused by bacterial infection. These red lumps are often filled with pus, like a pimple. Styes cause pain and swelling of the eyelid.