Can I be reprimanded for not showing up for work when I felt my personal safety was at risk even though I gave prior notice?

Yes, you probably can be reprimanded for that.

Is it legal for a company to change your pay without discussing it with you? If not, what can I do about it?

You probably need a local attorney. You are probably entitled to overtime pay for all hours worked over 40 in a week (assuming your employer is...

My employer terminated me and said that my hourly rate of would be cut to minimum wage. Is this legal in TX?

There is insufficient information to answer your question.

I am being treated unfairly at my job. I work in a restaurant and have worked there since Nov. 2013.

Form a union. Seek local counsel from an attorney. Unless they are illegally discriminating against you, you may have no other recourse.

Possibly. Depends upon whether you qualified for FMLA (1200 hours and a covered employer). Alternatively, you might have an ADA claim. Consult a...

Is it Required that an employer state that Random Drug Tests are a part of your job stipulation?

It may vary from state to state. You therefore need to consult with a local attorney. Usually, it is not required.

Is there a statute of limitations on getting overtime pay owed in Nevada?

You need a local employment attorney. Federal law has a 2 year statute of limitations (3 years if non-payment is willful).

Can I be terminated from my job because I make people feel uncomfortable?

Yes. Unless they illegally discriminated against you, which your recitation of facts does not reveal.

Theres nothing wrong if my co workers and i will resign,because he is not telling the truth

It is too difficult to understand what you are asking. More information is needed.

My former employer held my final paycheck after my resignation, claiming I had his "documents," which I DO NOT HAVE

You need to consult a local attorney. You may have a claim for non-payment of wages. In some jurisdictions that can involve triple damages (as in...