If a doctor has a hint of a suspicion that you are engaging in drug-seeking behavior, they will follow up on their suspicions. They are not doing that to demean or embarrass you. If you do not like the way a doctor is speaking to you, I would suggest finding a new doctor.
Defamation cases are difficult to prove. If you decide to file a defamation suit, the other side will -- as Ms. Sargeant said -- be entitled to learn a lot about your life in order to defend themselves.
If you have a stalking concern, you can request an order of protection from the court. But yes, it is legal for Greene County to post your mugshot and address online. Arrest information is public information.
You certainly have a chance. What you need to do is consult with a personal injury attorney right away and not make any statements to the insurance company. If your case goes to trial, a jury will determine fault. While you are correct in saying that it is not illegal to use a cell phone while driving, the fact that the other driver admitted to using a cell phone while driving is a fact that will work in your favor.
Police investigate, arrest, interrogate, and gather evidence against a person. They do not file charging documents in court. That is the job of the prosecutor. Also, you can sue your attacker, but unless he can pay a judgment, what's the point?