Need help with no energy i have been seeing doctors for eight years. they have not figured it out. i have seen a rheumatologist, neurologist, endocrinologist, heart doctor, and lung doctor.

I : I am glad that you have had a thorough workup for specialists. Sometimes there is just no obvious answer when a patient has a lack of energy. The only things that the patient can do is try to eat frequent small high protein meals (4-5 times a day), avoid any sugar foods or drinks, try gradually increasing walking, attend a class such as yoga which can be helpful, and keep their weight at a normal level (not too high or too low). I am sorry that you are going through this.

Unclear: Low energy is a very non specific symptom that can arise from multiple disorders both physical and mental. Since your have seen all those relevant specialists with no help why not try a psychiatrist?