Hello, Thanks for choosing health care magic for posting your query. I have gone through your question in detail and I can understand what you are going through. Feeling tired, sleepy and jelly legs can occur due to various reasons but hypothyroidism is the most common reason. You should get thyroid level assessed. The other reasons could be anemia and hypocalcemia. If you are ony drugs, then certain drugs like carbamazepine and phenytoin can cause such a side-effect. Maintain a healthy life style. Eat healthy and exercise regularly to the best of your capacity. Hope I am able to answer your concerns. If you have any further query, I would be glad to help you. In future if you wish to contact me directly, you can use the below mentioned link: bit.ly/dr-srikanth-reddy Wish you good health, Dr. Srikanth Reddy M.D.