I'll start by saying I'm not worried and it's more that I'm curious.
I used to get loads of headaches but things have changed and I don't get nearly as many anymore. Maybe two a month. Yesterday I woke up with one which lasted for a while and was bloody painful and only went after a little 'episode' during a seminar where my eye felt like it was going to explode (it felt quite hard too) and my heart was pounding so hard it was ridiculous, and I was just streaming with sweat etc. It was just very random and started very suddenly. Vision was fine, more floaters than usual perhaps. I'd taken some nurofen about an hour ago and it went after the eye thing calmed down but I felt shaky, tired, teary etc for a good while afterwards.
I don't think it was anxiety related.
Thanks in advance for any replies :)