This is a very common phenomenon.
I was also very satisfied after receiving SN and antiemetics.
If you know that someone, for example, suffers from depression and has become much happier day by day, it means that they could have decided to CTB.
Experts warn against this behavior and advise people to pay attention to it. Of course, the advice is addressed to healthy people.
The person is probably just happy that he or she has found a solution to his or her problems.
Of course, this is a temporary mood.