In the US, at least, you can call the gas company if you suspect a carbon monoxide leak. If you have reason to suspect a real emergency, you might also consider calling the fire department or emergency services.<p>Most fire departments also have a non-emergency line that you can just call for advice, they may even send somebody by non-emergent to check your house out and you as well. Some EMS providers (in the US most fire departments have EMS on staff also) have the ability to check for carbon monoxide in your blood.<p>During my time as an EMT, I saw plenty of people go crazy for various reasons from schizophrenia to completely unrelated physical issues such as diabetes, migraines, epilepsy and rhabdomyolysis. I AM NOT A DOCTOR, but you should consider consulting one. It may not be that you are not &quot;crazy&quot;, but you may have some other medical condition affecting your mental status.<p>Best of luck.