### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Ive noticed minor hallucinations in a waking, sober state, usually they seem stronger if I focus on them and/or there is music (or a rhythmic predictable sound) present. While they are not at a point that they interfere with my life or have caused me any difficulty in disregarding. These hallucinations are nearly always visual in nature and very rarely auditory, usually manifesting as slow wave like movement seen in blank, plain or highly textured surfaces, such as a mono-colored wall, desk or patch of grass. On rare occasions I hear what sounds like someone speaking a word or 2 in another room, or sometimes brief unintelligible conversation or sounds of movement (like distant walking). This is fairly rare. less than a single occurrence per week and almost always happens when I ma alone in a comfortable location, such as my home. The visual hallucination however are always present though as stated, easily ignored and nearly unnoticeable unless focused on.Its worth noting that I have used various psychedelic substances in my past and have also noticed (in the past) a temporary (roughly 1 to 2 day) reduction of symptoms after a singular use of dimethyltryptamine.What kind of doctor should I consult about these issues? Could this be a symptom of a more serious issue?

### output:

Degree understand your concerns went through your details. I suggest you not to worry much. In psychology, we broadly call it obsession. You had that disturbing sensation once. You expected it to happen again and waited. Then you started experiencing it as you were expecting it. Then your body brought the familiar symptom because you are expecting it. Then you started worrying that the symptom is coming again and again and expect it. Body brings it again as you are expecting it. You become worried and so on. That is obsession in simple terms. Ignore it and the problem vanishes. Psychotherapy techniques should suit your requirement. If you require more of my help in this aspect, Please post a direct question to me in this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. I shall prescribe the needed psychotherapy techniques. Hope this answers your query. Available for further clarifications. Good luck.