Symptoms means nothing, only 50% of hiv postive people had symptoms, the important things are risk exposure and test, you diarrhea can have thousands of causes, anyway is not normal to have diarrhea with blood, so you should go to a gastroenterologist.
Good luck
is it true that diarrhea is a symptom when someone gets infected early on?
not a doctor moderated forum. but to answer your question. when can you link stomach issues to hiv? here is the answer. When you have hiv you can then link stomach issues.