What is wrong when i am nauseated blood in stool and having headaches fever?

Nausea, blood in stool, headaches, and fever are symptoms that could indicate a number of underlying medical conditions. It is important to seek medical attention if you are experiencing any of these symptoms, as they can be signs of a serious illness.

Some possible causes of these symptoms include:

- Food poisoning: Food poisoning can cause a variety of symptoms, including nausea, vomiting, diarrhea, abdominal pain, and fever. In some cases, food poisoning can also lead to bloody stool.

- Gastrointestinal bleeding: Gastrointestinal bleeding can occur for a variety of reasons, including peptic ulcers, gastritis, and colon cancer. Symptoms of gastrointestinal bleeding can include nausea, vomiting, bloody stool, and abdominal pain.

- Infectious diseases: Infectious diseases, such as the flu or norovirus, can also cause nausea, vomiting, diarrhea, and fever. In some cases, infectious diseases can also lead to bloody stool.

- Medications: Certain medications, such as aspirin and ibuprofen, can cause nausea, vomiting, and gastrointestinal bleeding.

- Other medical conditions: Other medical conditions, such as Crohn's disease, ulcerative colitis, and cancer, can also cause nausea, vomiting, bloody stool, and fever.

If you are experiencing any of these symptoms, it is important to see your doctor for a diagnosis. Your doctor will be able to evaluate your symptoms and determine the cause of your illness. Treatment will depend on the underlying cause of your symptoms.