Stop denying Gulf War Illness existed years before there was a Gulf War!
Stop denying Gulf War Illness existed years before there was a Gulf War, and start including everyone so afflicted in your studies.
So many members of my unit were sick that I reported the situation to the Environmental Health people at Ft Bragg in the mid 1980s, only to be told they'd been "Ordered to not look into it." Calling this "Gulf War Illness" is simply a way of limiting government liability and leaves many people undiagnosed and untreated, not to mention uncompensated, simply because they inconveniently became ill somewhere other than the Middle East.
I've been told by those managing the Gulf War Illness registries at several VA hospitals that they have many people with the same symptoms, but are not allowed to include them on the registry or in any studies because those people didn't serve in Desert Storm.
You can't find the cause of any illness if you aren't willing to study ALL those so afflicted but limit your attentions to only one small group of people. This issue is much larger than the Gulf War, and must be addressed in its entirety in order to discover the true cause.
Stop playing politics and start actually acting as though you're interested in health care. Start studying and treating all those with Gulf War Illness symptoms regardless of where or when they served.