IM VERY CONFUSED ON TO DREAMS IVE HAD MORE THAN ONCE...

i've had this dream of me swimming in my pool at home...under water...and i need to come up for air...but i dont allow myself so i stay under and struggle..but end up being able to breathe through my nose under water....
i've had 4 dreams one different occasions...and in all of them i get shot...the first i was thrown to the floor and fell face down on the ground and was shot on the back of my head where my neck and head connect..and when i woke up i was in the same position in my dream...plus my head wobbled a little bit when i was shot and immediately when i was shot i was awake...the second one i was just jumping up and down in a circle screaming in pain because i had been shot on my back near my shoulder...the third was a little wierder...i was at home with my family and saw a flash of light outside the window and immediately grabbed my niece and took her to my room and laid on top of her to protect her from getting harmed...then my father had came up to the door way of my room and pointed and said something to a man and the man shot me in my hip but yet it felt like a gust of air...the fourth dream i was struggling with someone in the middle of the street...i was trying to get away from them and then i finally got up and while i was trying to get up they were trying to get up as well but grabbed my arm before i could get away and they had shot me in my lower spine...but i had felt pain that time...it was a sharp pain and i ended up falling to the floor and dieing...and once i had died i woke up....PLEASE HELP ME UNDERSTAND THESE DREAMS...