Dreams of being under water signify that you are allowing yourself to be immersed in a relationship, a belief system, your feminine nature, and you are exploring the deep end of your mysterious nature, sexuality, and depth.... Strangest Dream Explanations
Dreaming of being underwater suggests you are in over your head regarding some situation. You need to gain better control over your life.
If you can breathe underwater in your dream, this represents a retreat back into the womb. You want to return to a state where you were more carefree and had no responsibilities.... My Dream Interpretation