The lungs also help the body to get rid of CO 2 gas when we breathe out. There are a number of other jobs carried out by the lungs that include: 1  Changing the pH of blood (whether the blood is more acid or alkali) by increasing or decreasing the amount of CO 2 in the body. 2  Filtering out small blood clots formed in veins.
Anxiety, however, is often the cause of jelly legs, especially severe anxiety. Take our free 7 minute anxiety test to score your anxiety severity and learn more about how to control your anxiety. Start the anxiety test here. When your legs feel like jelly, standing can feel unusual. It may be accompanied by dizziness or balance issues that are either related to the weakness in your legs, or the direct result of anxiety causing other symptoms and conditions.
WebMD Symptom Checker. WebMD Symptom Checker. Numbness or tingling, Weakness (Arm) and Weakness (Leg) WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms numbness or tingling, weakness (arm) and weakness (leg) including Peripheral neuropathy, Lyme disease, and Multiple sclerosis. There are 22 conditions associated with numbness or tingling, weakness (arm) and weakness (leg). The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.