Tonight on my way home the orange light with a picture of a car skiding kept flickering on and off really quickly as if there was a loose connection or something ??? Then later i had to do an emergency stop then emedently after theres this constant metal grinding noise like something was draging on the floor, so i got underneath but i couldnt see anything

So i took it really easy home with this loud noise still constantly there then about half way home that orange light stayed on and its still on now ??!! Plus the car now wants to stall everytime i come to a stop
Has anyone come accross this before ? as i want to sort of know where to begin looking for the problem.
Cheers
Sam