I'm afraid I did something wrong in first practicing the technique.
The doctors say that it is unexplained.
Soma; did you get your tinnitus while doing meditation? Was it a loud and annoying ringing that was always present? Did you meditate while it was present.
A meditation technique taught and used by Ajahn Sumedho involves resting in what he calls "The Sound of Silence"[4]. He talks at length about this technique in one his books titled "The Way It Is"[5]. Although some may regard it as the same thing as the Nada yoga in the Hatha Yoga Pradipika, a closer read of the chapter about Nada yoga in the Hatha Yoga Pradipika will clearly reveal that they are indeed different. The "Sound of Silence" is also the title of one of Ajahn Sumedho's books (published by Wisdom in 2007). In his book, "Sound of Silence," he mentions that it is not actually influenced by his study of Ven. Hsu Yun's works or by the Shurangama Sutra, though he has heard that the Shurangama mentions a similar practice.
You have to MAINTAIN EQUANIMITY towards it, if you want Vipassana to work all the way. What I have seen often is that people are very enthusiastic when they start learning Vipassana, but when they start to get all the uncomfortable symptoms appearing, they start reacting to them and thus, miss the central aspect of Vipassana. Because the technique has started working, we get the symptoms, but if we want all of that to pass, then we have to let Vipassana work its magic all the way through. So, my suggestion is, if this is just a discomfort, then observe it, patiently as well as persistently. USe these experiences to strengthen the new habit of equanimity.