This post from Yoganonymous by Kate Stone, a yoga teacher in Boston, speaks to me on many levels. No, I can't do a a Forearm Stand. In fact, the only inversion I can do at this stage in my practice is the basic Legs Up the Wall inversion. Still, the yogi writing the article lets me know that even the experts are feeling what I feel at times.
Just remember, Jocko, BREATHE!