I was dismissed six months ago by a private company ?

Dissatisfaction with performance, or personal conflicts, unless discriminatory, are legal.

What is the US Code for cause of action, for filing in US District court for gender discrimination against a business.

Prior to proceeding to federal court, you have to get a right to sue letter from the EEOC.

Can an employer tell an employee to tell another employee that they are terminated?

It is legal - an employer is allowed to assign job duties, which can include telling someone else they are fired.

Can I sue for lack of production due to lack of training?

Can you sue? Yes. But unless you can show that the lack of training was contrary to a contract, or discriminatory, you can't win.

Can you pursue legal action against an IME doctor who injures you?

With any medical malpractice case, the issue is damages. They are expensive to prosecute, and unless the damages are significant, it is unlikely...

Moreover - why are you sharing pictures with a stranger? This is just asking for trouble. You KNOW there are people out there fishing for victims...

Does a former employee have grounds to sue a former employer for wrongful discharge when she makes more money at her new job?

Net lost wages is the primary factor for damages. Punitive damages are awarded in very few cases.

Is it legal for a company to cut pay for people in one division, but only for employees in a specific state?

As attorney Powell stated, it would be your burden to show that the decision as to who to cut was discriminatory, based upon a protected class...

I received a determination of ineligibility, can I appeal?

Read your determination letter carefully - it should state what your appeal rights are, and the time by which you have to file.

Is it legal for an employer to force me into full duty, even though a physician has me on light duty, then fire me cause I can't

Generally, there is no requirement that an employer provided light duty. The issue becomes if it offered it to others but not to you - then there...