Hello, my 3 year old son has had a bowel movement on the potty and floating in the accompanying urine, I noticed a greyish thing looking like linguini in width and height. Approx size: length : 15 cm, width: 5 mm, height: 1 mm. (can provide picture upon request) Could this be a worm? I have kept it in a jar with water, if I need to show it to a doctor on Monday (no clinic opened Sunday) would it be preserved long enough to allow for examination? Thank you