[18M] Experiencing black, tarry stools and diarrhea

What might be happening

Based on your symptoms, here are a few possibilities:

• Gastrointestinal Bleeding: Black, tarry stools (also known as melena) can be a sign of bleeding in the upper gastrointestinal tract. This can be caused by a variety of conditions, such as peptic ulcers, gastritis, or esophageal varices. The lightheadedness you're experiencing could be a symptom of blood loss.

  • Diagnostic tests for this condition might include an endoscopy or colonoscopy to visualize the gastrointestinal tract and identify the source of bleeding. Treatment would depend on the underlying cause but could include medications to reduce stomach acid, endoscopic procedures to stop the bleeding, or surgery in severe cases.

• Medication Side Effect: Certain medications, like ibuprofen, can sometimes cause gastrointestinal bleeding. This could explain your black, tarry stools.

  • If this is the case, your doctor might recommend stopping the medication or switching to a different one. They might also prescribe a medication to protect your stomach lining.

• Iron Supplements: Taking iron supplements can sometimes cause stools to turn black. However, this doesn't usually cause diarrhea or lightheadedness.

What you can do

Given your symptoms, it's important to seek medical attention as soon as possible. Here are some steps you can take:

1. Contact your healthcare provider: Let them know about your symptoms and ask for their advice. They might want to see you for an examination or order some tests.

2. Monitor your symptoms: Keep track of any changes in your symptoms, and let your healthcare provider know if they get worse.

3. Stay hydrated: Diarrhea can cause you to lose fluids and electrolytes, so make sure to drink plenty of water and consider rehydration solutions if necessary.

What you should look out for

Please seek immediate medical attention if you experience any of the following:

• Severe abdominal pain
• Vomiting blood or material that looks like coffee grounds
• Feeling faint, dizzy, or confused
• Rapid, shallow breathing or a fast heart rate
• Decreased urine output or dark-colored urine

Please remember that while I strive to provide accurate information, I'm not a doctor and this advice should not replace a consultation with a healthcare professional.