Dissociated without Ketamine

[arman]

SWIM recently discovered when he listens to music which he used to play while on K, SWIM can feel K (flashback???) without even administrating 1mg of it.
Using this music SWIM feels K, like around 40-50mg IM. Althought the last time he administered Ketamine was about 4-5 months ago.
SWIM finds it very interesting and feels that he gets less high everytime he listens to it without K.

Another interesting experience he got after using Ketamine IM (for a while) was when he injected a steroid to the same muscle that he used to inject K, and he felt K, although it didn't had any K in it, and the steroid does not supposed to cause any instant effects. SWIm didn't feel anything the next time he injected steroid, even after injecting K again.

Conclusion:
SWIM thinks the brain can reach that (dissociative) state without any drug, and K is more like: Pressing a button in brain which cause the mind to become seperated from body. (althought SWIM knows a lot about the supposed action of ketamine on brain which caused the dissociative state)

SWIM is going to get some K soon, again. the last time SWIM used K thinks he doesn't need it anymore and left it in trash. But now, he thinks he needs to complete his K journey, now he has some meth and wants to try them together, as Ritalin often helps SWIM be more alert and remember the experience much more.

SWIM just wants to know if any SWIY experienced any feeling of K without actually using it? or can anyone describe it in terms of neurology/brain chemicals?