Don't worry friend it's not uncommon. I have had to fight it off a lot lately too. You should look at Romans 7:14 it's helped me so much as I struggled with binging and purging. It says this:
"We know that the law is spiritual, but I am unspiritual, sold as a slave to sin. I do no understand what I do. For what I want to do I do not do, but what I hate I do....As it is, it is no longer I myself who do it, but it is sin living in me....So I find this law at work: When I want to do good, evil is right there with me. For in my inner being I delight in God's law, but I see another law at work in the members of my body, waging war against the law of my mind and making me a prisoner of the law of sin...What a wretched man I am! Who will rescue me from this body of death? Thanks be to God--through Jesus Christ our Lord!"
He will rescue you. It takes a long time and many battles, some that you will lose. I have been battling this for years, but I know that victory is somewhere down the road. I just keep pressing on towards it. You've had victory too and you will see more. Just keep the faith.