I am happy for you that you had such an enlightened psychiatrist! (As long as she was not just humoring you to get more information as to how your mind works!)
I had to smile ….. because NHS psychiatrists here (UK) would immediately think of padded cells if a patient started talking about their third eye opening.
Our doctors are not as enlightened as your former psychiatrist seems to be.
There are psychiatrists who understand the spiritual path and the science behind the opening of the third eye. Find one who is on a path like “Transendental Meditation” or better yet, “The Art of Living”. It is important not to talk of such things with those not on a path, who do not understand. We all need to find people who can see and hear us accurately and affirmingly. Those with eyes to see and ears to hear are becoming more prevalent.