Speed Induced "hallucinations" Options

Now I know that everybody who has experienced "hallucinations" from staying up days on methamphetamine will almost always put it down to speed induced psychosis but after having a very lifelike conversation with a voice in after 3 days of sleep deprivation and lack of food im starting to question how imaginary these so called hallucinations really are.

Im interested in hearing opinions on the subject from occultists. I had no idea what psionics were until I had this experience. The voice talked about all sorts of things but at one point it said "Seeing as your more in tune with this dimension where deceased people reside, I can send you psionic frequencies". Also the voice asked me if it was my first psychedelic encounter.

Another very strange detail was the fact that after the voice told me it was going to give me a wet willy I actually felt a cold finger poke me in the back. It either felt like a cold finger or cold water seeping through my t-shirt.

Alot of very strange and unexplainable things happened. The voice seemed hellbent on convincing me I was dead too. It wanted me to face a certain direction and I noticed when I did the voice would get louder and more intense. At one point the voice said "Now that I have his undivided attention, I concentrate on his frontal lobe". I felt hands on each side of my face after that.

Something fairly strange that happened was after the voice told me I was going to get carpol tunnel syndrome my hands went ice cold and started sweating excessively for no logical reason.

Should I just assume it was my subconscious speaking to me or was there something else involved? The reason I posted in the psionics forum is because of that statement it made about psionic frequencies. I might have heard about psionics but I didnt know exactly what it was at the time.

Ah I found it. Heres an excerpt from an article describing the kind of sensory hallucinations i have.

Occipital cortical discharges can generate elementary visual hallucinations such as light spots, twirling objects, and geometrical figures. Etiology may include, traumatic cortical scars, post-concussion syndrome, neoplasms, infarctions, vascular malformations, lupus erythematous, degenerative, vasculitic lesions, or metabolic insult.

http://www.priory.com/halluc.htm

I also did have a head injury six months ago and had a weird concussion after effect (I got a strong chemical rotten egg smell and nearly fainted for no reason) so what you said would make a whole load of sense only problem is I had these hallucinations before having the head injury. Ive had loads of head injuries throughout my life though also I have a huge dent in the back of my head since birth and the occiput is in the back of the head.

http://en.wikipedia.org/wiki/Entoptic_phenomenon

I obviously have this occipital discharge thing. Weird you mentioned epilepsy because from what i gather occipital discharges are linked to it but im 100% sure im not epileptic. Ive stood in front of strobe lights many a time.