Assymetric energy symptoms aren't reason to panic, but they're to be taken seriously.
What happened, I'm nearly certain, is that whatever was suppressing the right side was a relatively minor thing/block/issue, and by bringing your attention to the assymetry, it spontaneously resolved. This is really really good news! Remember this tool in future. Your attention has remarkable power to affect change, especially within your energetic body.
I'd STRONGLY suggest asana study, which can 1. even out left/right issues, and 2. cultivate even further your ability to direct attention at your body. While I frequently recommend Iyengar system yoga, in your case I'd very strongly suggest it. Iyengar yoga is all about precision of alignmnent and attention, which is just what's needed. And since you clearly have strong powers of attention, you'll eat it right up!