Get an attorney now. This is a difficult disease to argue inability to work, because WC will try to argue just based on the injury to the limb and not any of the other factors. Remember a lawyer costs you nothing up front, no matter what state you are in, they only get a percentage of your payout from WC in the end, and they are always worth it in the big cases because of what they are able to get you in terms of better care, larger settlements etc.

If you were injured at work, they cannot legally terminate you. They can only put you on medical leave. Because if you are able to return to work in any function they must either give you a position that fits your restrictions, or state that they are unable to, which then puts you back onto disability until you can go to the whole vocational thing.

But in your situation with the fatigue you also need your dr arguing for you that you do not have the staminia.

PLEASE get a lawyer ASAP>