J.J.
I had mine in November 09 when my 4th child was born. I've noticed since I stopped nursing and am finally getting "my" body back after all those years of birth control, pregnancy and nursing that my body is very different. I honestly don't think that it has anything to do with any type of "syndrome" to be honest. Think about it (I'm using my personal experience to base this hypothesis on, so bear with me)...I started hormonal bc when I was 16 years old. At age 20 I had my first child, whom I nursed for one year (exactly), then immediately went back on hormonal bc until becoming pregnant with my second child about 2.5 years later. I nursed her for about 5 months, then back onto the hormonal bc again. I stopped the bc when #2 was just over 3, and soon became pregnant with #3. I nursed her for nine months until I found out I was pregnant with #4 (Surprise!). I had my tubal when he was born via c section. I nursed him for about 10 months and then restarted my cycle. Since then, I've been extra moody during the typical "pms" time, my flow has been heavier and lasted longer (though I did have the ablation which did help with that aspect of everyhting), terrible acne and even a slight bout of PPD.
My point is that I haven't really known how my body works for nearly half of my life. I've been on synthetic hormones, pregnant or nursing for 15 years! Now that I'm not being affected by any of that stuff, my body is different...from what I'm use to. You (not you specifically, more in a general sense) have realize that your tubes have nothing to do with your hormone or your cycle. Their sole job is to transport the egg (fertilized or unfertilized) into the uterus. They have no hormones.