Well theres two types of candida that people get; theres chronic candida and theres the regular candida infection.
If your candida goes away with just nystatin then you have a normal infection and candida should just go away after the nystatin usage. The herx last like a week.
But chronic candida wont go away with nystatin. It grow back after the nystatin is stopped. Chronic candida is cured by restoring all the bodies imbalances. And yes; herx can include jittery feelings but mostly bloating , gas, and overall not feeling well.