Yes, it is a flatline of sorts for certain. I do not know why erections and libido are not always linked, but this is fairly common. My thoughts are that this will resolve itself the further you get from PMO and MO. I do think that spacing out O's helps a lot...how do you feel after O? For the days after? Pay close attention to this. Neurons that fire together wire together, so giving the brain a break from O's helps you unwire the P pathways over time. Lack of libido seems to reflect a need to rewire to real sex a lot more, but doing so with a minimum of O's or no O's seems the most prudent path.