Thank-you for all your replies - I'll be brief now as it's late (UK time). I think it is just a first experience of some kind of episode. I've only ever had 2 migraines and I remember the first time (10 years ago) I wondered what the hell was happening - I knew the term but didn't really know first-hand how it differed from a bad headache - the 2nd time I knew exactly what is was and was less distressed by it. I saw my dr about it and I have a referral to some psychological services and I'll follow up on that. I know a number of abnormal things were happening all at the same time - my eating went a bit haywire, my driving too and I'm a placid driver. I swim a lot - 3 times a week and up to 2.5 hours each swim as I'm training for something atm and I wondered if my eating went out of the window after months of carefully control and a lot of exercise but I know I don't feel quite right in myself - something like the feeling (I imagine) of climbing out of a wrecked car after a crash and feeling like I'd had a lucky escape - that feeling of being jittery and unnerved. I am not doing anything irrational or delusional - just becoming very forceful, persistent, verbally aggressive - a general PITA and I don't like it, makes me feel unsettled. I think there is an anger issue in this somewhere - as with all of us - there is a wider context, a mixed terrain of other issues. If I can understand that this is some kind of episode the awareness I hope, will be enough to help me recognise and deal with it better next time (like the migraine) - I'm never keen on drugs or talking therapies. It also crosses my mind it might be the start of more problems - I don't know.