I am sorry it made you feel fuzzy. I did not say it works for everyone. My grandma gets delirious from Tramadol, for example. Many people are just simply pain-free on it without getting "high", let alone delirious. I personally do not experience these mental symptoms of opiates so I have no first-hand experiences. I know what euphoria is like, I have taken MDMA, but opiates works more peripherally for me, even the ones that are supposed to pass the CNS greatly.
Of course, I think, ultimately it is for you to decide whether it is worth the risk (feeling fuzzy) or not. It is not for me to decide what works for you. :)