This is how I look at the spleen in traditional chinese medicine, it is not what we anatomically know of as the spleen. Let's just say it is a nickname in TCM for our digestive system. Now think about this, have you ever eaten while angry or upset or in a hurry... big mistake at least for most of us ...heartburn, reflux, what have you! When we are in an emotional state ( fight or flight for instance) the qi or blood does not go to your stomach ( this is true in the western anatomical sense as well). Why? because you need to haul butt or kick butt not digest food. Soooo when you are obsessive you are in a negative stressful state constantly disrupting digestion and qi flow to your digestive tract.
Always eat in state of grace , calm and peaceful, and very regularly ;)