Hi Fairy, I think it was solar flare activity. It was reported here (on mainstream media no less!) in Sydney a few weeks ago and i was a feeling a bit fatigued (although ive been sick for the last 2 weeks). I also heard it reported today on the radio in the car that there was geomagnetic activity/CME's. I've just googled and yes, there is indeed a "severe" geomagnetic storm hitting the planet today, so lots of CME activity.
Edit: Again, it seems is coupled with an eclipse!
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