Very sorry to hear what happened, it must have been very upsetting for you.
Unfortunately, if a person filmed you in a public place driving such a vehicle and falling asleep or struggling to stay awake, there is no offence there by what they have done.
They could be seen as opportunist for selling the video to the newspaper.
The news paper would most likely have used the material in a public interest way to show up the employer and possibly the standard of driver etc that the employer were using. Sorry to say, but a public interest story and freedom of the press would mean you have no case against them and certainly not 5 years later.
If you had any claim it would be against the employer and and working conditions you were subjected to. However, they have already paid compensation to you.
So I am very sorry to say, that as hard as this may be, you have no claim to make against these people, sorry.
Thank you for using Just Answer and for allowing me to assist you with your legal enquiry. I am pleased I was able to be of assistance. Please do not hesitate to come back to me for further advice on this or any other legal matter. It will be my pleasure to be able to assist you again.