Hyperventilation syndrome is a condition where a person hyperventilates for an unknown cause. Symptoms of hyperventilation syndrome include bloating, burping, passing gas, abdominal pressure, anxiety, weakness, fainting, dizziness, confusion, and agitation. A person with hyperventilation syndrome should seek medical care to assure it is not a serious medical condition.
Anxiety Disorders Anxiety as a medical condition is characterized by worry, fear, nervousness, shortness of breath, sleep problems and other symptoms. Diarrhea, tremors and rapid heart rate are some physical symptoms of severe anxiety, which may arise from a mental or physical condition, drug use, or some combination of these causes. Treatment can include medication and psychotherapy.