Board Rule 202(e) is your authority. Be careful though as the adjuster will try to point you toward one of their doctors. You should probably consult a GA workers comp attorney who can point you to a favorable doctor.
That is because it is hard to settle or get paid where the employer had no insurance. You should call the State Board's fraud compliance unit and report the employer. Also you can file your own WC-14 and request a hearing if necessary.
You cannot sue your employer or your co-employees for personal injuries. However, I can often find other responsible parties that might be subject to suit. It will obviously depend upon the facts of your case.
As you guessed, the sad reality is they probably will fire you. There are a couple of things you should do. First do not quit. Let them fire you if they want to because then they will not be able to provide light duty work. Second, you may want to document that you are being singled out in response to the write ups. Third make sure you do not have a one year gap in medical treatment or if you do file a WC-14 because there are a number of st of limitations that apply to comp claims. Fourth...
PPD is usually the smallest of the 3 elements of a settlement-- TTD or lost time being the largest and medical being the next largest. 8% X a whole body rating of 300 weeks equates to 24 weeks of benefits but you may be missing most of the settlement money because you do not know what gives value to the claim.
It is never too late to seek legal advice but you should do so right away. Do not try to handle this serious situation yourself or you the insurer will turn the screws to you. You need to speak to someone that handles a lot of workers' comp like one of these attorneys that answered your question.
You need an experienced GA WC attorney. They cannot stop your checks. What may have happened is the adjuster inputted a certain number of payments to go out weekly and she just did not put in a new order for more TTD. Adjusters do this sometimes to get the claimant to call them. Anyway your case is about to get complicated and you need an experienced GA WC attorney. cell phone is-678-362-1407.