One being a bleeding
stomach ulcer,with consists of,
stomach pain burning ,indegestion,sometimes nausea sometimes not,but also bloody or black stool,the second being,if you have had potty issues,the acid could have burnt you anal track or rectum and blood can come from that,or constipation,scraping your track comming down the canal,but there are other things and you really need to see a dr. to rule out anything else serious .....Im here if you need me....