I'm 21 years of age, 5ft 8 and weight 11 stone/77kg/154lbs
I don't smoke or drink.
After following a pretty strict diet of rice, potato, meat and vegetables for a week, avoiding any dairy, last night I decided to have a "cheat day", where I ate pizza, drank 4 beers and ate white bread. This morning I had a DARK black stool, which I inspected it and found small white solid rocky bits. There was no smell either. I'm pretty concerned...
It’s always best to see a doctor when you have changes in bowel habits or stools. It could be that you have Coeliac disease, this is obviously just a guess as it needs diagnosing properly. Blood tests for it initially- although they are not as reliable as colonoscopies with biopsies taken and you must eat gluten for 6 weeks prior to these tests. See your doctor first though, he/she is the best person to help you. Good luck.
Avoid these foods since they are causing digestive trouble and see a doctor.
Hmm go see your doctor, that's not good, well if it's not the same you should see your doctor. Good luck.