I'm experiencing something interesting while nursing my baby... it's called D-MER (dysphoric milk ejection reflex). Every time I have a milk letdown, which is triggered by rising levels of oxytocin, I have a dopamine crash.
I have a couple letdowns every hour, so it's getting quite annoying! It's like being on the worst part of an orgasm hangover for several minutes out of every hour. The website mentions that some women have found that orgasm makes their problem worse, so I have found yet another reason to get back into our Karezza groove. We engaged last night which was really revitalizing for me. It ended in orgasm for him but he described it as very different and not as draining as orgasms in the past. He has been pretty eager and excited since the baby came... he keeps giving me sexy looks and talking about making another baby! He has had three orgasms since the baby came (that's more than he has had since May) but he seems to have unearthed some buried libido and is still processing it. His orgasms certainly haven't turned him off of me so far.