[42M] With abdominal pain, constipation, and lightheadedness

What might be happening

Based on the symptoms you've described, there are several potential conditions that could be causing your abdominal pain, loss of appetite, fatigue, and other symptoms. Here are some possibilities:

1. Gastrointestinal Bleeding: The presence of black, tarry stools (known as melena) suggests that there may be bleeding in your gastrointestinal tract. This can be a serious condition and requires immediate medical attention. Causes can include ulcers, gastritis, or more serious conditions like a perforated ulcer or gastrointestinal cancer.

2. Diverticulitis: This condition involves inflammation or infection of small pouches (diverticula) that can form in your intestines. It often causes pain in the lower left side of the abdomen, along with symptoms like fever, nausea, and changes in bowel habits.

3. Colorectal Cancer: While less common, the combination of your symptoms, especially the presence of blood in your stool and significant changes in bowel habits, could indicate colorectal cancer. Early diagnosis and treatment are crucial.

4. Peptic Ulcer Disease: This condition involves sores that develop on the lining of your stomach or the first part of your small intestine. It can cause abdominal pain, nausea, and black stools if there is bleeding.

5. Severe Constipation: Chronic constipation can lead to significant discomfort and complications, including fecal impaction, which can cause severe pain and changes in stool color.

What you can do

Given the severity and combination of your symptoms, it is crucial to seek immediate medical attention. Here are the steps you should take:

1. Go to the Emergency Room: Given the potential for serious conditions like gastrointestinal bleeding or diverticulitis, you should go to the emergency room as soon as possible. If you are feeling lightheaded or at risk of passing out, do not drive yourself. Have someone else take you or call an ambulance.

2. Call 911: If you are alone, feeling very lightheaded, or if your symptoms worsen, call 911 immediately. It's important to get professional medical help without delay.

3. Avoid Eating or Drinking: Until you are evaluated by a healthcare professional, it may be best to avoid eating or drinking, especially if you are feeling nauseous or gagging when you try to eat.

4. Prepare Your Medical Information: Bring a list of your symptoms, any medications or treatments you've tried, and your medical history, including your allergy to erythromycin, to the hospital. This will help the medical team provide the best care.

Remember, while I can provide information based on your symptoms, only a healthcare professional can give you a formal diagnosis and appropriate treatment. Please seek medical attention immediately.