No, this is about withdrawal symptoms. When you stop taking certain pharmaceuticals, you may experience withdrawal symptoms that aren't just a return to how you felt before you started. In the case of antidepressants these symptoms sometimes include dizzyness and nausea.

Withdrawal symptoms come into play in the case of addictions as well. It can be dangerous to suddenly stop taking an addictive substance. You may have heard the phrase "cold turkey": that refers to withdrawal symptoms.

https://en.m.wikipedia.org/wiki/Cold_turkey

The body is not a state machine with trivial logical properties!