It is quite common to feel good or nothing for a period of time. some people never have any noticeable detox signs.....this doesn't mean it isn't working.
you could have a symporter defect or an organification problem as t2t is alluding to the later....B2/3 will fix that one, vitamin C will fix symporter defect.
4 drops of 5%? or 2%
you can always up you dose if you want to push the detox.