Driving back from a conference with my work colleague in the car one who is pregnant, I signalled to pull out into the 3rd late which was safe to pull out, the driver came speeding up behind me beeping his horn. We carried on driving as there was a few cars to over take the motorway was busy at this time, he then under took me with such small space to get back into the 3rd as I was about to overtake a car. He decides to slam his breaks on, so I have to put my foot to the floor and go down to 40mph (in the 3rd lane), I flash my head lights to say what’s going on… then he decides to break hard another time, which I didn’t have chance to look behind me if another car was coming. I went back down to 40mph again with the breaking. He saw 3 women in the car when undertaking us as he was throwing his arms up and still decides to brake so dangerously infront of us on a busy motorway just because I pulled out into the 3rd lane in my own right.
Male was wearing a cap & sun glasses. Maybe in his 30/40s.
