Ronnie the advice from my mw was as follows - if you ask a gp they will say 6 weeks but your insurance company may allow it earlier. However if your insurance company are okay with it and you have a crash, after speaking to a gp, you may not get a pay out because the gp advice is 6 weeks. If you only speak to thr insurance company and have an accident then they can't backtrack and withhold a claim for medical reasons as you never spoke to a gp. If that makes sense?
I was back to normal, shopping/driving/cleaning by 4 weeks and slowly built up to this. I felt mostly okay by 2 weeks but didn't drive or hoover until 3 weeks.