I agree. If you have any ailment that may be connected to service, file a claim for it. As Berta said, you may be entitled to special monthly comp for certain issues, if not now, possible later as ailments get worse. Also, should you pass away (God forbid) from any service-connected illnesses, your dependents are eligible for benefits. If you are only 100% SC for PTSD and pass away from say, heart disease, before the 10 years that make your 100% permanent, your dependents will get much less. It is very hard to prove PTSD alone as a cause of death.