Hopefully you got the vehicle plate number and a name and call the police and report the accident as soon as possible and give them all them information you have. I would treat it as a hit and run if I was you.
Unfortunately, your medical doctors may correct. I would contact an attorney who specializes in personal injury litigation. They may be able to best assist with you regarding any communication with your doctors. Further you should discontinue any communication with the insurance adjuster until you had your consultation with that attorney.
You can hire an attorney and file suit against them immediately or let you auto insurance take care of the claim thru your collision or Uninsured Motorist coverage. The insurance company for the guy who hit you might be looking for way to not allow coverage because they are not cooperating.
Your carrier can pay your claim then they can decide to go after his insurance for reimbursement, but at that point you will be out of the process other than to cooperate with your own insurance...
Yes you can, however, your insurance company may look to the other drivers insurance company for payment. This is not unusual. However, if the other company is at fault you should consider going after the property damage and the injuries from the other driver who was at fault. Also, if you decide to claim the property damage on your insurance you may want to talk to your agent and try to determine if it is going to affect your coverage in the long term by filing a claim. As always you can...
Yes you are entitled to damages for loss of earning if you can prove them. You will most likely have to show how many jobs you lost or a history of earnings so that they can calculated forward to get an idea of how you can claim. As usual if you have any questions you should consult with an attorney
You may have a falling product case. However, pursuing a claim against Walmart is very difficult and can be very expensive. There are law-firms who specialize in suing just Wal-mart. I suggest you contact a personal attorney with experience going after Walmart. And you should do so sooner rather than later.
It may or may not speed up the process, every insurance company has their own way of handling claims, as does every adjuster with these insurance companies. I suggest you contact an attorney who can review your claim and provide advice on how to proceed. Remember insurance companies are out to make money not to be your friend.