Yoga makes me feel pain

Before I started yoga in earnest, I had heard that yoga is a peaceful, calming practice that soothes your soul and warms your heart and makes butterflies pop out your ass and glitter shoot out your nose peace love unity yoga.

This is far from the truth. I find that some poses (actually, most poses, but especially Parivrtta Trikonasana) make my head feel like its about to catch on fire, and my limbs usually feel like they might just tear off. I am well accustomed to "good pain" and "bad pain", but this new yoga pain is something else entirely. Instead of feeling my limbs hurt or my muscles get tired, I feel like I might just explode.

See below: