Christine – It is not thinking that you are struggling with, but your feelings about those thoughts. Thoughts are simply photocopies of the real things, and have no power unless they stir us up emotionally and cause fear. If you think about a person you know it can never be that person – just a poor copy.
I know that is just me spouting off, but I have found it wonderfully useful to recognise what thinking actually is.
But your dream is another matter. It is a picture of a very dark condition you are in, with the pressure building. It speaks of pain that there is no escape from except through your nipple
I wonder whether a way to slowly meet these feelings is to use the http://dreamhawk.com/body-and-mind/the-slow-breath/#1-4-2
I have found this of great value dealing with things such as these – different times in my life: “My own sex life has become a desert with its pain, soiled with its dead life. - Then I wept, convulsed with pain and misery as I relived the experience of having my tonsils out. I wept and jerked, feeling that terrible shock the pain had worked on my sexual feelings, the centre of my sensitive nervous system. Then I lived through the operation on my nose, and it felt as if my whole nose filled with blood. – The pain was so great I ended sucking my bicep as if it were a breast.”
These were not dreams