Each case is valued on its meriits, however the Guidelines for General damages in personal injury state that where a full recovery is made between a few weeks and 1 year, the vallue of the claim will be around Â?850 to Â?2750
These are for general damages (the actual injury) and then you haqve special damages which covers everything else, such as your out of pocket expenses, damage to your vehicle, and so on.
Without having seen your medical report or your case file, it is impossible to value your claim on a public forum, but the idea of the medical report is not only to determine the severity of the injury as it was and now is, but to also offer a long term prognosis and thus affects the value of the award as well.
You can change your solicitor at any time and it will not cost you.
If you instruct a new law firm to take over your case, then they will ask you to sign a letter of authority to allow them to ask for the file, and then they will give an undertaking to pay your previous law firms reasonable costs when the case settles.
If you are being covered under legal expenses insurance, then your current law firm will be paid anyway, and your new law firm may be able to continue to have your case funded under the policy or switch you over top a Conditional Fee Agreement (No win no fee).
Bottom line is though that it will not cost you anything to switch.