Protein loss in urine. Syndrome?

I got swelling in my feet and met a physician. he told to take urine n blood test. In blood albumin level is 2.2 on 10th april. and also i have been protein loss in urine. while tested urine the pc ratio is 6.2 (on 10th april) 4.2 on 22nd april and 5.2 on 27th april. consulted a nephrologist and now having omnacartil 60 mg.daily from 10th to six weeks told. Now 37 days passed with taking this omnacartil steroid 60 mg. I have hyperthyrodism and having medicine from 2012. And now stopped due to having steroids. And i have uterine fibroid too. No medicine is taking for that. Excess bleeding is there in periods time. I want to know the following. pls. advise 1. what kind of food i can eat now? more protein or less protein? 2. water intake? 3. Is this symptom is actually kidney syndrome? I have no bp, sugar . 4.I am having hyper thyroid medicine tablet methimizol 10 mg/5 mg from 2012 december onwards. Is this medication lead to this nephrotic syndrome?