So sorry this happened to you! It's weird...I can remember every detail of my crash where I fractured my pelvis...kind of wish I couldn't! BUT, I didn't hit my head, or if I did, it was so light that it did no damage. My pelvis broke my fall (pardon the pun).

You've received some excellent advice here, and I have nothing to add except that it sucks that this happened to you, and I hope you'll heal up well. DO take time to recover and don't rush it.