This sounds like a liver detox glitch to me. Sometimes due to lack of certain minerals, vitamins, or enzymes, one or more of the liver's detoxification pathways can be less than optimum in its/their performance. This can lead to certain substances not being dealt with effectively.
Another possibility is that the kidney is not detoxing effectivley. Either way detox is key. Lightening the total load or body burdon is paramount. This can be done through diet, liver, colon, parasite, candida and kidney cleansing. As Southern Belle already stated, drinking lots of pure water is a must.
If things don't get better after these protocols then I would suggest a CDSA and liver detox test from a lab like Great Smokies. This will help determine where the problem lies and how to best support it.