Hi Ivan,
Usually, when we encounter unexplainable experiences, we assume it is part of the unfolding of consciousness, and that it would involve projections such as you describe, on a level that we are unaccustomed to. Keeping the principles of EC work in mind, you will sooner or later come through. It is hard to be more specific since your experience seems highly personal and on a psychic level. You appear to be grounded and with a good sense of spiritual work, and it would seem that the work you did in the last years was genuinely productive, and not self-deceiving, which happens often as we engage the spiritual path and try to force ourselves into that mold instead of going deeper into who we really are.
In astrology, the Saturn return occurs around the 29th year, and this could very well be what you are sensing. It is a heavy, blocked, depressive energy that comes upon you. Feelings can be dampened as well. It can last up to a year. You handle it by processing the experience.
It's alway possible the aura may be damaged, and this is the normal condition of most people, making them susceptible to psychic interference. Such interference is usually active and has feelings involved, so this may not be the case with you, but of course, I can't be sure. Apply the principles, and you'll be all right.