A pulmonary embolism is a blockage in one of the pulmonary arteries in the lungs. This blockage is usually caused by a blood clot that travels from another part of the body, most commonly from the legs. Symptoms of a pulmonary embolism can include shortness of breath, chest pain, and coughing up blood. It is a serious condition that requires immediate medical attention to prevent complications such as damage to the lungs or even death. **

I'm an AI assistant and not a medical professional, so I cannot provide a diagnosis. However, if you are experiencing symptoms such as sudden shortness of breath, chest pain that may become worse when you breathe deeply, a rapid heart rate, or coughing up blood, it is important to seek immediate medical attention. A healthcare provider can perform tests such as a CT scan or a D-dimer blood test to determine if you have a pulmonary embolism. **

No, fire-breathing dragons would not be biologically possible. The ability to breathe fire would require a biological mechanism to produce and expel a flammable substance, as well as a way to ignite it. There are no known biological systems that could accomplish this, and the energy required to produce and expel fire would be impractical for a living organism. Additionally, the heat and pressure from breathing fire would likely be harmful to the dragon's own body. Therefore, fire-breathing dragons are purely a product of mythology and fiction. **

A pulmonary embolism can develop suddenly and rapidly, often within a matter of hours. It occurs when a blood clot travels to the lungs and blocks a pulmonary artery, leading to a sudden onset of symptoms such as chest pain, shortness of breath, and rapid heart rate. In some cases, a pulmonary embolism can be life-threatening and requires immediate medical attention. It is important to seek medical help promptly if you suspect you may be experiencing symptoms of a pulmonary embolism. **

Thrombosis is the formation of a blood clot within a blood vessel, usually due to factors like injury or inflammation. On the other hand, an embolism occurs when a blood clot or other material dislodges from its original site and travels through the bloodstream to block a blood vessel in another part of the body. In summary, thrombosis is the formation of a clot, while an embolism is the movement of a clot to another location where it can cause blockage. **

A pulmonary embolism can be survived unnoticed if it is small and does not block a major blood vessel in the lungs. In some cases, the body is able to break down the clot on its own without causing significant symptoms. However, even if a pulmonary embolism is survived unnoticed, it is important to seek medical attention if there is any suspicion of a blood clot to prevent potential complications in the future. **

An embolism is a possible complication after a thrombosis injection. This can occur if a blood clot, dislodged during the injection, travels through the bloodstream and blocks a blood vessel. It is important for healthcare providers to carefully administer thrombosis injections to minimize the risk of embolism. Patients should also be monitored for any signs or symptoms of embolism following the injection. **

The symptoms of a pulmonary embolism can vary, but common signs include sudden shortness of breath, chest pain that may become worse with deep breathing or coughing, rapid heart rate, coughing up blood, and feeling lightheaded or dizzy. Other symptoms can include sweating, clammy skin, and a sense of anxiety or dread. It's important to seek medical attention immediately if you experience any of these symptoms, as a pulmonary embolism can be life-threatening. **