Hildegard.........I had the same sensation after my 2nd liver cleanse. Almost like something was alive maybe an inch+1/2 depth from the opening of the ear canal.My lymph is severely backed-up, so I think your intuition is right. I came to the same conclusion. Has your thoracic(upper spine) been a problem? I wish there was a device(rotorooter) for lymph. When I try rebounding, something toxic is released each time. I feel toxic for hours after....So frusrating. Ive never read anyone explain it(lymph) at all until I read Andreas's Amazing liver cleanse. It must be common knowledge in Ayurveda....Good luck Hildegard.