I have a two story house with two bathrooms upstairs. Recently my water was shut off by the city. I didn't know that it had been done until I flushed the downstairs toilet two or three times. I paid my bill and got it turned back on. Every since I got it turned back on the pipes make a deep humming noise when I flush the upstairs toilet in the master bathroom (after the tank fills up). The noise last for about a minute. If I turn the water on anywhere in the house the noise stops. How do I fix this?

Turn OFF and back ON angle stops ( valves with water supply ) at each toilet.