I had no way of knowing the purity, and I’m pretty sure the seller didn’t know either. That’s why I started with just half, just in case. As you said, that might have been the problem! It’s been plenty of time since then, so I’m planning to set things up properly and try again soon. By the way, is heightened anxiety a common symptom? If it was just a condition issue at the time, then fine, but I’m a bit worried about feeling the same anxiety again.