(((channlluv)))
I'm not a doctor or a lawyer or a therapist -- but I do know from personal experience that it doesn't have to take a lot to trigger an anxiety episode or depressive episode, especially if you have a history or predisposition. It takes a lot of effort to achieve balance in your life if this is part of who you are, and getting rear-ended probably was a bit like getting the rug pulled out from under you.

In addition to going back to the lawyer, you might give your own insurance company a call, as well as your family doctor. It's just good to keep everyone in the loop. When you do your initial assessment with a therapist, it's like any other treatment -- there will probably be a question if you are seeking treatment as a result of an accident and was there another party at fault. There may be some procedure in which you, your therapist and your insurance co. submit a claim to the driver's insurance company.

Hope you feel better soon.