Wanting to do a high dose of DXM - Advice please?

[exists]

I just can't believe that I was seeing people that weren't there on only 200mg DPH. Has anyone else had experiences like this on such a low dose of DPH?

Were you a little more tired than usual? Maybe it's similar to how people take a regular dose of Ambien, yet purposely force themselves to stay awake to hallucinate?