On your cycle, what did you run, and at what doses? Also what did you use for cycle support and how did you dose that? List all support supplements taking during cycle as well.
Do not take cranberry extract, if your kidneys are already having issues that can exacerbate them by forcing the kidneys to work harder. Instead start drinking no less than 1.5 gallons of water a day and up to 2 gallons within a day or so you will have cleared out a lot of the toxins causing the issue.
Now if you start drinking a lot of water and are not pissing like crazy and notice edema, swelling of the lower legs due to water retention get to the doctors immediately. That means your kidneys are now unable to flush at all and you will probably need some medical assistance to get squared away without permanent kidney damage.
Then again it could also be almost all liver related believe it or not. That would be the better option, but again list your cycle and your support supps as well as what you are using for PCT.