I felt a twitching sensation near my treatment area Is that normal?

This sensation means the body is responding to the suggestions the acupuncture needles are making.
In our experience, patients commonly feel things like a twitching sensation, a sense of lightness, heat or coolness, heaviness, or aching at the target area. As long as these don’t keep you from relaxing or dozing off during your treatment, then it’s not something to be concerned about. These sensations are all clues that things are moving along properly. And that’s really what an acupuncture treatment is all about.