Ritalin,
Yes you will be compensated by her insurance company. DO NOT sign anything or accept any checks from them right away!!! You need to collect all your bills and get your shop to value your bike for replacement. Keep their written offer but tell them you need to process all your costs before giving them a total number.
If you have a family lawyer, it would be wise to get them to advise.
It is straightforward so getting a lawyer otherwise sounds unnecessary at this point unless the insurance company refuses to pay out.

You also need to wait and get a follow up physical exam to make sure there are no lingering problems--make sure it is written into a doctors file on you when you go to get checked out (not emergency room but your own doctor). All this legally will be paid by her insurance (I'm not sure of specific laws in Tennessee).

Anyway, the big deal is that you are ok and the bike is replaceable and nothing really to get upset about. Glad a bad accident wasn't worse and you are very lucky she had insurance- that will make your life alot easier.