LOL, being a OB nurse that went to OB right out of school and have never desired to do anything else..... To anwer your question are you crazy.... YES, and I believe you will hate it, it will be nothing like Post Partum, probally be overworked, and certainly understaffed, with patients acuity that is extremely high.
I work on a post partum floor now and I hear nurses complaining when we have five couplets, that dont' even have IV's, I/O's, or any medication other than Motrin, and to think that some people have 5 or 6 patients on Med Surg that are on drips, what seems like hundreds of medications, dressings, PCA pumps, catheters, tubes etc.!!! YUCK!!!, I would CERTAINLY LOOK FOR OTHER POST PARTUM JOBS!
Just my 2 cents worth, for all of you that do Med Surg, I truly do believe that you guys are the stellar nurses, because you must really love it to do that!