So today I have been getting cramping like period pain on and off with the occasional tightening of my belly. Nothing regular enough to think much of it. And the other night I had cramping every 20-30mins for 5hours but it settled down after that.
But tonight, the following:

21:35 - cramps + tightening
21:47 - tightening
22:05 - cramps
22:24 - cramps + tightening
22:34 - cramps
22:56 - cramps + tightening
23:04 - tightening
23:14 - cramps + tightening
23:28 - cramps + tightening
23:37 - cramps + tightening
23:50 - tightening

I've also had increased lower back, leg and groin pain; headaches and dizziness