I Have Recently Had A Urine Test And It Came

I have recently had a urine test and it came back with calcium oxalate crystals in it. I have recently had problems urinating and when my wife and I have sex I struggle to ejaculate and when I do it feels like pressure built up and burns. I have had a complete blood testing done and everything was perfect. I do snort crystal meth could this cause the calcium oxalate in the urine?