Hi There I m wondering about my general and muscle fatigue. Quite frequently I find my muscles fatigue quicker than they should. I m a 27 year old female, I eat well, I workout at least 3-6 times per week (I m a fitness instructor), and I get lots of sleep (8hours/night). However, if I walk up a flight of stairs I find myself with complete full body fatigue and quite a bit of burning in my legs. I get very tired easily. I take Wellbutrin 300mg XL and Zoloft 150mg daily, but have had this issue well before I started those medications. I m also on Nuva Ring. I ve had blood work done and everything seems to be working alright there. I have quite a bit of frequent pain, but nothing to the point to make me think of something like fibromyalgia. Any insight is appreciated