Ok i'm not sure if this means anything or is the start of anything but since about 12pm last night i've had lower back pain and period type cramps low down. I can't tell if i'm having regular tightenings or not but it has been enough discomfort to keep me up all night. I eventually fell asleep at about 4am as I was literally exhausted Just woken up and am still uncomfortable and sore. So is this the start of something?