my husband was involved in a accident on 10/05/99. it was his fault his truck was totalled, hers was still driveable. my question is she denied medical attention at the scene and signed a waiver that she was fine. 2 wks later she states that she suffered a concussion (she claims that she went to emergency room) and pain and suffering from a back ache. (she also states that she has been seeing a chiropractor) if our insurance co allstate does not pay out on her claim can she come back and sue us later for damages, if so for what damages can she sue for. also for the past two days she has pulled up in front of our house and just sat there watching our house, when she sees me she just speeds away, could this also help our case (i do have her on video tape watching our house) also our ins has already fixed her car.