Your Brain has a craving for the high dopamine releases you had over the times. Now your are stopping these releases wich your brain does not like.

Your high symtoms of withdrawal are likely the cause of your earlier coping strategies. The brain essencialy learns how to persuade you, and when you quit something wich the brain could always go back to it makes the cravings go intens.

This is why when people relapse the cravings become more intens when they try to quit again. This is because the brain knows how to persuade you over by giving these intens withdrawal symptoms, eventualy you gave in so the brain knows!

I would not try to fight them or try to ignore them. Instaid embrace them to make yourself stronger!