lower body fatigue?

thebubble09

im now 33.5 weeks and my lower body is FATIGUED!  every time i approach a lower body workout or even a walk on the treadmill, elliptical, stairs, etc, all fo which i'm doing moderately, i feel as though i've just run miles before i even get started.  my muscles just feel weak, sore, and tired.  anyoen able to relate??