shower - low hot water pressure
All of the sudden this morning, we had very low hot water pressure in our shower. All the other faucets in the house and our other shower all have normal hot water pressure, so this is the only one not functioning right. It has a single valve to adjust the temperature (all the way to the left is hot), and we still get some hot water out of it...just very little. Our house was built in 1999 and we have city water, so I question if it could be clogged (if so, what would I do), but I was wondering if any type of valve that may need to be replaced? Please send advice.