Sometimes my power is kind of fading and I feel the same way, I am just tired and exhausted. What helps me in those days is taking just a few days off, letting my muscles relax and recover, doing some light yoga, pilates adn eating well, sleeping well and after few days, the world seams being a totally different place :) I also found out that if I do only pole dance, I come to this point more often. If I do a combination of regularly pilates or yoga elements before each pole dance training or on the days I do not practice pole dance, so basicly a good strength training and cardio, my body respons much better. Veena hes some great lessons for building up strength too. They are very helpful. Hope you feel better soon, sweetie, you WILL have more power, I promisse :) . But allow yourself also a little break, sometimes it is exactly what our body needs.
Big hug, Lara