I am fed up of feeling constantly tired. I am a teacher so quite a full on job but I just seem to spend my time waiting until I can go to bed again as I'm exhausted. I'm falling asleep each night on the sofa and don't have any energy to do anything. I don't look forward to plans we might have at the weekend as I just know I will be exhausted. I have had blood tests and nothing untoward with thyroid. I was wondering if anyone takes any supplements that have made a miraculous change to their energy levels?