I had a knock in my mondeo last week and its all going through insurance (most likely with a 50/50 responsibility outcome)

I've had a call from uninsured loss recovery firm who are dealing with the claim, they're asking me to bascally fake an injury along the lines of whiplash (as this type of injury can only be taken on the word of the person injured) as I'll be entitled to compensation. I have to go see a doctor and register a complaint of aching neck etc..

She's sent me a couple of forms via email to respond to today that basically give them permission to persue this claim of injury.

Sounds a bit fishy to me? Anyone else been through this?