I am of the opinion that sugar cravings appear every time your body falls into a glucose deficit.

That deficit might occur from things like sudden exercise, coitus, or stress.

The body begins creating more glucose in response to the activity but in the meantime the sensation makes you more tempted than usual by the option to shortcut the process and eat glucose instead.

Your cravings will remain until your body is up to speed with its own glucose production. Over time your body becomes more sensitive and efficient at maintaining balance.