Strange Sediment in Urine

Patient: I’ve attached a photo. It’s pretty small and it’s not reddish as in the photo, but instead more of a gray color. I have no pain or other symptoms. This sample is larger than most. Sometimes it’s more like a tiny dark speck. I first started noticing these back over the summer. I can’t afford to see a doctor in person as I’m unemployed and have no insurance.

Doctor: