Do our bodies get accustomed to the probiotics and get sick or feel bad if we stop taking probiotics and supplements?

No. While we've known many who improved their health with Probiotics, we've not met anyone who took it, got healthier, and then regressed after he or she stopped taking it. If anything, it will help your body and intestinal system reach greater balance and then you should be healthier after that--whether you continue taking it or not.