I am very scared as i don't feel i'm back to normal
Actually i was given a very long treatment i don't know why, i test just before the end but kept taking the treatment till the end.
Chlamydia, Gonorrhea are the easiest things to treat. They are bacterial infections just like any other bacterial infection that needs antibiotics to treat. Strep throat per example or any other.
I understand your fear right now, but since you tested negative after the treatment, it is expected and it is cured as it is expected to be :)