I got a stent on the 28th valve, at first it was very painful, then it…

I got a stent on the 28th valve, at first it was very painful, then it became easier. Now it's been 30 weeks, the analysis is not good, there's protein in my urine, I take Coifron and Furmag and cranberry tea. It has appeared again pain and blood in the urine, so I think this is normal?