Im just curious as to what could happen if i used an old sex toy. i dont know if i cleaned it properly or enough, i didnt clean it before i put it back and its for anal use. i used it again and my stomach has been hurting a bit? odd bowel movement to?

At the very least trauma to the anorectal area can occur but this would result in pain & tenderness there. Bacterial infection could follow. Bowel movements may be affected. Abdominal pain & tenderness would be severe if high rectal perforation occurred or if incomplete rectal obstruction is present.. I recommend having a rectal & abdominal examination by your physician.

Was a bad idea. Could be symptoms from local trauma. Get examined and treated per findings.