This feeling

Man I hate this feeling. It's gnawing, tearing, and gnashing.
But then that's my curse this feeling.
Though it does have it's uses. The least of which let's me know the date. Let's me know it's the one day a month I lose. Ugh there it goes twisting, turning, and burning. The night falls and I'm filled with rage and yearning. It's almost time so I must go. To all of civilization I must say no. The woods will do tonight they will be my home. I'll find a nice spot for my living room. I'm here now and the beauty is stunning. I look to the sky with a smile seeing that great luminous orb as it rises. Man I love this feeling! Finally it's free as all the moons light enters me. The change oh it's my favorite part. Well now is my chance to run amongst the trees. So goodnight and if you hear howling, you will want to run from me!