Pain and inflammation do kind of go together. Injuries can cause inflammation or even lots of white blood cells fighting and dying can cause inflammation etc. What I meant is that it seems like more of a systemic inflammation if it was in your arms and back and now in your legs.
Detox is one of the most amorphous evil words in the realm of diets imho. It can make people ignore and tolerate outrageous things. Anything and everything can be attributed to it and verifying that something is a detox is almost impossible. General guideline I use is that I would consider something to be a detox only if it lasts a short time at the beginning of a new diet or inclusion/exclusion of a food or supplement. Otherwise, I would assume that something is not right and needs to be addressed. Doesn't mean that things aren't detoxes otherwise - it's just that this way the "belief blinders" for which the word "detox" is used to keep in place can be more easily avoided. As long as I'm having any symptoms or don't feel good for more than a week or two, if I don't believe it is detox, then I can keep my observation, thinking and problem solving options going. It's just too easy to fall into a belief system about health and diet and then call negative symptoms that falls out of the belief system detox.