Had the same issue with my female. I ended up having her tested for tick diseases. She tested positive for erlichea. She has been on doxy for a month and no training until medicine is finished. She is bouncing off the walls at home and occasionally I do a quick ob (fuss, sitz, platz, etc) and she is doing all quickly and with enthusiasm. If the "boredom" came on suddenly you may want to have some blood work done. In addition to build drive for obedience, I crate her throughout the day - not just on days we train. This seems to work for her as I need to hold affection with her or she is really not interested in pleasing me during ob.
Felice vom Amulree, SchI, TRII, CD, RA, CGC, TDI
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