Medically Unexplained Chronic Multisymptom Illnesses are. becoming more common among Gulf War veterans. The VA is starting to recognize this as a service-connection in many veterans and granting them disability. If you want to know if you'll have a better case with MUCMI or Pneumoconiosis because of your lungs, give us a call. We can go over your case for free and give you advice on how you should proceed.