I had a swollen left ribs and often times it occurs with back aches.. what do you think it is?

I have had kidney problems and that was because of my hereditary disease-Lupus..I was somehow relieved when I took Acalka(Potium) and Polynerve(b1,b6,b12), but now I am suffering a swollen left ribs which also occurs with back aches, I was wondering why it suddenly happen well infact I was eating fishes and vegetables only.I also undergo water therapy,until now. I will post more of my observation with my body..