I turned off the main water to the house to perform a plumbing repair. The water was off for approximately 5 hours. During that time, I partially drained the water heater tank to flush it (forgot to open a hot water faucet, so it never fully drained...gonna have to to flush it again :/).
Upon turning the water and water heater back on, all of the bathroom sink fixtures "behave" differently. At one, flow is reduced to about half of what it was. At another, turning on both hot and cold fully gives no more flow than turning either one on fully. In the master bath (double sink), one faucet had low pressure before and the other was fine, but now they are opposite - the low pressure one now seems fine and the previously-good one has low pressure / flow.
Main shutoff valve is open fully, as is the valve at the street. Other fixtures in the house (tub, shower, kitchen sink, washer, dishwasher) seem to be operating normally. What could be the cause of this and how can I fix it?