Bad PMS ever since mc? Normal? Help?

[Mrs Reineke]

I had a mc at 5 1/2 weeks in June and each month since my mc I've had HORRIBLE PMS symptoms! Before my mc I would get tender boobs a few days before my AF would start and some cramping right before it would start and then once it started my boobs wouldn't hurt anymore and I'd have cramps for the first day or two and that was it. Now my boobs hurt REALLY bad from ovulation until my AF starts, I get aches in my lower belly on mainly the right side near my pelvis and below my ovary, upset stomach, nauseous off and on, headaches, etc. I don't know if it's common for your PMS symptoms to do this after a mc or not? I wasn't even that far along? I'm on CD 30 of a 29-30 day cycle and I took a pregnancy test on CD 28 and it was negative. So if nothing shows up by CD 32 I'll test again. Just confused as to why my body is reacting so differently than it did prior to my mc? It's been 3 months...I'd think my body would be back to normal by now?