I had protein in urine - proteinuria - when I was pregnant and had a preeclampsia. I didn't knew it had to do with kidney problems. In fact, no one really explained me what it ment, just told me it was from the preeclampsia (a very high blood pressure that can lead to problems with the baby and the mom). After I had my baby (he was born only with 31 weeks) it took some weeks for the urine to came back OK.
Hope you find a solution and get well
Zélia
