Nasal problems, adenoids out and potential regrowth?

I have a constant runny nose, to the point where it actually is adversely affecting my life. I have to constantly walk around with tissues to blow my nose, in college i end up with tissues piled up around my desk and i cannot get work as i spend most of my time blowing my nose. Its unhygenic and i am ruining my hands with sanitiser to keep other people happy even though the fluid that comes out closely resembles water, and not mucus at all. I sneeze hundreds of times a day. Im at a loss. I have had my adenoids removed before, and I am starting to think they are back. I also get cold and flu's incredibly easily, and can never smell anything or breathe through my nose. Any and all help is greatly appreciated because I am tired of having my nose rule my life.