About antibiotics

[Hopelesss]

How much time after stop taking antibiotics bad breath should come back? I read about 3 4 5 days. I stopped on 29 June and just 3 days ago I felt again little synthomps like saliva smell, and my confident says that in the morning my breath is not absolutely normal like in past days but heavy and hot. I was dreaming after 2 weeks, I was worried everyday because I am psychological destroyed but I was dreaming because after 2 weeks without bb I was starting to believe in my normal breath.. But now is second day with synthomps. It's possible it come back after 15 days from stopping antibiotics?