I was driving on an old road I use to live on as a child. It was raining and there was water filling the fields on either side of the road. As I drive along I came to a section of road that looked to have a low level of water covering it, but as I passed through it, the car became completely submerged in water. It was impossible for me to see anything because the water was muddy so I couldn't get out of the car and the air slowly began to disappear. I just slowly suffocated in the car and there was nothing I could do. I believe the reason I had this dream is because I've been thinking about and missing my mother. She passed away 2 and a half years ago. I cant seem to get her out of my head. I miss her so much it has given me panic attacks and anxiety.