I do believe you're experiencing
SYMPTOMS but 5 doctors and testing say otherwise as well as the fact you're posting here.
I've known of anxiety sufferers that have been literally bedridden for months! What about those that have such severe Agoraphobia that they never leave the house or those with severe stomach and bowel issues? Anxiety can be debilitating and cause real physical symptoms. The symptoms can be treated but treating the root of the problem can also treat the symptoms associated with it.
Positive thoughts