Just getting over a stomach bug, today is a good day, but stool was part black... ??? but i did have peptobismul yesterday. is that normal

Yup, normal: Pepto Bismol (bismuth subsalicylate) colors stool very dark, often nearly black. The other main cause of black stools is blood in the GI tract, but bleeding is rare with garden variety viral gastroenteritis. No worries as long as your symptoms continue to clear up and normal color returns over the next few days.

Peptobismul: causes black stools. You should be fine. The black stools should soon go back to normal in the absence of taking more of the medication. If not, see your doctor.