The other day I forgot I left the hot water running in the kitchen (maybe at least 20 mins). Now I have low water pressure on both hot and cold water. The temp outside at the time was probably -2 F. I haven't noticed low water pressure anywhere else. The water pressure in the kitchen seems to be about half pressure as normal. I have a single spout head with pull up nozzle for water where you turn it left for hot, right for cold, and center for mix temp. I also have the pull out spritzer where the water comes out. Can you tell me if I have a serious problem requiring a plumber? Please Help!
Thank you.

Sample faucet image similar to mine. (http://previews.123rf.com/images/elenathewise/elenathewise1007/elenathewise100700058/7305391-Filling-glass-of-water-from-stainless-steel-kitchen-faucet-Stock-Photo.jpg)

Try cleaning the aerator.

https://www.youtube.com/watch?v=e_DaEA5UtqY

Sorry for the title of this video, but it gives a pretty good description of what to do.