Help. I started a new job over a mnth ago. Basically i am running arund for 9 hrs a day. My last job i sat for 9 hrs a day. I lost 30 lbs already which is great. The problem is my leg muscles always feel too tired to move now. My knees hurt and i feel like i got hit by a truck all of the time. Ive started to drink a lot of water and taking fish oil and multi vit. Im thinking protein powder next. Any suggestions on how to get me back to normal? Im only 30 and i feel like im 66.