From the sounds of it, you were probably fully geared up, is that correct? To be sliding down the interstate after being hit, and be able to say merely that "I hurt everywhere" seems to be as good an outcome as there can be, and likely the result of wearing gear. Otherwise, I would assume the description of the accident would be coming from one of your loved ones.
I have two kids at home, and buying a bike in the first place was a soul-searching event. I did the MSF course, read books, watch videos, wear ATGATT, etc. to decrease my risk of anything seriously bad happening... but the fact that it can keeps me alert and focused.
good luck on the physical and mental healing process
Drew