Epilepsy is a disorder of the brain. People who have epilepsy have electrical activity in the brain that is not normal, causing seizures. There are different types of seizures. In some cases, a seizure may cause jerking, uncontrolled movements, and loss of consciousness.
1 The following drugs, medications, substances or toxins may possibly cause Rapid breathing as a side effect. 2  Amphetamine intoxication. 3  Procyclidine. 4  Kemadrin. 5  Disipal. 6  Theophylline.  more drug causes...Â».
This is another type of fast heartbeat. It's caused by there being an extra pathway through a part of the heart called the AV node. It can cause heart palpitations, fainting, or heart failure. In some cases, you can stop it simply by breathing in and bearing down. Some drugs can also stop this heart rhythm.ecause the heart is beating too fast, it can't fill up with enough blood. This can be a serious arrhythmia -- especially in people with heart disease -- and it may be linked to other symptoms. Ventricular fibrillation. This happens when the heart's lower chambers quiver and can't contract or pump blood to the body.