I have been diagnosed of renal parenchyma disease. I have been experiencing symptoms such as swelling of feet, normness of hands and feet, and pain on the left side of my stomach. Though the swelling has reduced, I'm still experiencing the normness of my hands and feet and pain on the left side of my stomach. Please, what do I do? How can this disease be treated? What type of food should I eat or avoid? What are other things that could help as well?