When I turn on the faucet on my kitchen sink, it always shakes for a few seconds before the water starts to come out, as if the water has drained from the pipes. At first the water dribbles out then in a second or two it starts to flow normally. This problem is becoming progressively worse by the day. I think it might have to do with the sprayer that is a part of the faucet. I almost never use it and when I do try to use it the water just barely comes out. It sprays out very weakly. How can I fix this problem?

Do you have shut off valves below the sink in the cabinet? If so disconnect the lines after the valve so you can confirm a good strong flow to both hot and cold. Back to you