This may be too much information so I'm sorry in advance, lol.
This could simply be a PMS symptom, but I never experienced anything like this EVER with my periods. Yesterday afternoon, I got a mild dizzying headache and started to feel that cramping sensation like I was going to start my period. Normally, the day I get the cramps is the day I start, usually within an hour. It never came and later that night I felt it again along with the mild headache. I put in a tampon overnight as I was expecting it to start while I was sleeping and didn't want to wake up in a mess.
I woke up at 5am feeling more intense cramping and assumed that was it and went back to sleep. I woke up again at 7 to get ready for my day and went in the bathroom to clean up and that tampon was bone dry. Throughout the morning I had the lightheaded feeling and felt somewhat sick up until 2pm. Still no blood? I now feel fine like nothing happened and I feel no symptoms of my period starting anytime soon. It was supposed to start yesterday, or today (i'm confused now because of the false alarms and kind of lost track. My cycles are very normal and this "threw it off").
What could be the issue? Any other women experience this?