Once I got a batch of 'ketamine' that produced extremely mild psychedelic effects, and that was impossible to k hole on. The most pronounced effect was a total numbing of my tongue and throat. It was not very pleasant. I complained to the vendor, who is a friend of mine, and he said that he actually had been scammed on a kilo of ketamine and it was some other drug related to ketamine but not actually ketamine. I want to say norketamine but I cannot remember with certainty what it was called. Anyway he refunded me and eventually gave me some real ketamine. Hearing your report of throat and tongue numbing reminded me of that, but it seems that you got decent psychedelic effects still. When I got that bunk ketamine it was like 98% numbness 2% trippy.