[ugosanchezo]

Hi, Zack. I don't have OCD, but like most people, I sometimes find myself hung up on a certain feeling or idea. When that happens, whether in meditation or in "ordinary" activities, I first have to become consciously aware that I'm hung up on the feeling or idea. Having caught myself being hung up on it, then I can respond with something like, "Well, that's a temporary feeling/idea. It's just brain activity. It will pass and be replaced by something else soon enough. No need to cling to it or give it any more importance than any other feeling/idea." That is, no reason to act on it, no reason to try to suppress it. Just watch it arise and pass. Detach from it. It's not you, and it's not permanent.

Here's something that may be helpful to you:

Dynamic Insight (vipassana)

Once focus of attention has been established and distractions minimized, the meditator is in a position to begin practicing insight meditation. This type of meditation involves a conscious return to activity and observing the movement of the mind. With this method of meditation, The Four Noble Truths are reconsidered as a description of the dynamic thought process. In other words, thoughts arise; there is a reason why thoughts arise (AND persist); thoughts pass away; and there is a way to understand this whole process.

In a sense, insight meditation returns to a stirring of the mind — but with a new awareness. The thought process is freed but is observed with fresh eyes. The dynamic nature of thought is watched and when the flow of thought is impeded, the observer looks at the reasons why a particular thought may be attractive. Attachment or clinging to thought is observed in this way. The root of emotions can be understood by such observation. Some monks liken this process to watching the same movie over and over again. When we cling to thought, for whatever reason, watching its return is like watching reruns, “Oh, I’ve seen this one before....” In this way, emotions and thoughts are not controlled, rather they are grasped as they arise and can be rechanneled or dealt with properly before we become fixated or hung up on them. From: http://www.thaibuddhism.net/meditation.htm