I am so sorry that you are going through this and that things have been so difficult for you lately. What you describe does not have to be kidney issues and the symptoms may be unrelated. However, I do hope that you've made an appointment to discuss all of these symptoms with your doctor so appropriate tests can be run in order to determine exactly what the cause is. Please let us know what you and your doctor find out and how you are doing. Warm Hugs!
Peace and Blessings
Look For The Good and Praise It!