Am i Being justly compensated

Hi,

Realy need some help, 18months ago i was involved in a motorway accident that i survived but has affected my quality of life greatly,
Firstly, i was hit by a driver that was asleep at the wheel, the driver crashed into me whilst i was driving in the outside lane of the motorway, he lost control and hit my rear quater causing me to fishtail along the carrage way, i was told by a wittness that two of the fishtails i had i was on 3 wheels, i still dont know to this day how i kept my car on its wheels, all i remember is seeing vehicles in my rear view mirror come at me at speed, i belived my life was about to end, during the collision i aquired a sprained wrist, whiplash to my neck, upper back muscular damage, my head and ear hit the seat belt pillar twice.

Whilst i was able to exit my vehicle ok, i was in shock, it wasnt until the next day that my hell started, after a hospital visit i started to have this annoying ringing in my ear, 18months later i still have this issue, i have had numerous examinations for my injuries and i have been diagnosed with severe tinitus with partial hearing loss in one ear, my wrist has since mended, my back and neck symptoms remained for 1 year, i still have niggles, my biggest issue is my psycological state, my quality of life has reduced, i feel i cant cope with day to day issues like driving, making confident decisions, i have been diagnosed with PTSD, i occaisionally have flashbacks, i feel guilt, my whole life has changed as a result of this accident, i am in a proffesional career, which has been affected by this, even my marrage.

I have been offered a some of money to settle the claim, the amount that has been offered is 20k, the thing is, my solicitor is saying this is a good deal and take it, i feel however that it is not, i spoke to a colleague who had an accident 10 years ago and was awarded 6k just for whiplash, it doesnt stack up to me, the thing is, its not as if i need the money, i just wanted to be compensated fairly.

Hope someone can advise me on what to do, this is the first time i have ever had to claim for anything so this is all new.

Thanks in advance.

Kaz