I feel like I have three levels of thought - unconscious, unprompted and active. Unconscious are what you'd imagine - I don't actively think them (like I don't hear the thought in my head), but clearly something's happening in my brain that's affecting my actions.
Unprompted and active are both things that I hear in my inner monologue or picture in my head. The former, as the name would suggest, are things that I'm not trying to think about - intrusive thoughts are certainly an example. The latter are things that I am purposely shaping my thoughts around.
Active thoughts are almost the only thing that come out of my mouth (if I'm very surprised, an unprompted thought might come out). Would I have that same level of control here?