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».
Physical Symptoms of Anxiety: 1  Nausea or dizziness. 2  Frequent need to urinate. 3  Diarrhea not caused by illness. 4  Trembling. 5  Headaches. 6  Fatigue. 7  Insomnia. 8  Sweating. 9  Rapid heartbeat and breathing. 10  Muscle tension.