I would recommend it. It would help the toxins release from your body and probably make you feel better. If you don't want to do a SWF then you could always take a senna tea such as Smooth Move at night.
Apparently there is some chemical weight in the uniodized Sea Salt that is the same as blood. Therefore, the sea salt doesn't get absorbed by the body which is what allows it to flush out your system. Regular salt won't work because it will be absorbed by the body and it'll seem like you just ate/drank a lot of salty stuff (which you would have). I think you'd be fine with a tea like smooth move which can be found in most grocery stores in their health food section.
you have to do the SWF on a totally empty stomach. no water no juice no pills.
and i suggest skipping it unless you are noticing yourself feeling ill.
it rinses out the bad stuff and the good stuff too(digestive bacteria).herbal laxative teas can cause dependecy if overused. one tea affects me for 2-3 days.
again i would use this unless you feel sick from detoxing.
if and when you do it...
if you think you have to pass gas...it actually the SWF on its way out. so go to the bathroom.