I know what you mean. My finals are next week and my mind has reverted back to as soon as I feel any emotional pain I want the physical pain too. Sometimes it's all I can think about which makes me upset because I can't study and then I want it because I'm upset. It's an endless vicious cycle it seems.

However, it is possible to not act on the urge; Incredibly difficult and at times impossible without anothers help, but still it's possible to fight it.

I wish you the best of luck