This dream could have a physiological cause simply because you have to go to the bathroom. The unconscious, in this case, recognizes the body’s need and uses the dream to wake you. On the other side, the urge to go to the restroom means that you expect to get rid of old habits and change your lifestyle. In the same manner, the unconscious could be advising you that you are incubating an infection. The act of going to the bathroom would be a way of eliminating toxins.
To dream of the restroom indicates legal problems regarding property.
[1]If you dream about a public restroom means that you may be due for a period of self-renewal. It’s time to get rid of some burdens or emotions that are weighing you down. Also see “Toilet”.
[2]1. Restoration, refreshment, often from emotional situations.
2. A need or desire for “rest.” 3. Reverse: difficult endeavors are in the offing.
[3]