Im 32 Year, Female, No Children. I Did Gastric Slevee

Im 32 year, female, no children. I did gastric slevee 1,5 year ago. Liposucsion 6 months ago. I have white things in my urin (started 3 months ago). Somedays i dont have but 8 of 10 times i have this white things. No problem when im in wc. No symptoms. Only warm urin. My dr looked up proteins and infections only. Normal. Its gets more (almost double) white things floating when i eat meat! Very strange. Its look live snow flakes on urine. Pls help me. Thanx