You have been involved in a car accident that was not your fault. Another driver, one with insurance, hit you and caused considerable medical expenses. One of your biggest issues is that you are uninsured. Can you still sue and get help for your bills?
First, no two situations are exactly the same, so it is always a good idea to meet with a lawyer (many offer free consultations.) In general, though, you should be able to sue for medical expenses and lost wages. However, you are not able to sue for pain and suffering when the car is uninsured, according to California Civil Code.