This process starts in the cellsâ cytoplasm and is completed in the mitochondria-the cellular powerhouse. In those tiny organelles, one molecule of glucose with 6 molecules of oxygen are changed into 36 molecules of ATP â the energy cells can use to get things done.
Symptoms of Severe anxiety. The list of signs and symptoms mentioned in various sources for Severe anxiety includes the 4 symptoms listed below: 1  Feeling of extreme uneasiness or apprehension. 2  Increased heart rate. 3  Sweating. 4  Unable to think clearly. 5  more information...Â».
You might be irritable or easily scared. You might even feel depressed because of your constant state of worry and stress. Eventually, chronic anxiety can cause long-term symptoms including muscle aches, sweating, fatigue, upset stomach, shaking, and insomnia. During a panic attack, you may have trouble breathing, and you may experience symptoms of dizziness, blurred vision, and rapid heartbeat.