Eating food off my plate in a particular order (depending on what I'm having). Long veg and chips have to be cut into similar lengths and there needs to be an even number of things on the plate so no one item is left by itself to be eaten.
Hubby finds this hilarious and takes great pleasure in tormenting me!
I also hold a mouthful of whatever I'm drinking in my mouth for a few seconds before swallowing – no idea why I do that, but certainly wasn't aware of doing it until hubby delighted in pointing it out.
He will organise and categorise his stuff (CDs, DVDs etc) over and over again – a pointless activity to me – and just the other day I asked him to put away some ironing for me and next time I was upstairs found that he had 're-organised' my wardrobe.
Gosh, ankles look odd close up and from behind – not a view you normally get!
I suspect even if it is an achilles strain, it will be a mild one as there's no swelling or obvious pain. I've seen someone with a severe achilles strain and they were in a great deal of discomfort accompanied by quite a lot of swelling!
Best to go to a physio/professional though to get an absolute diagnosis. If it's mild you'll probably just have to rest it for a few days then start some rehabilitation exercises (generally eccentric calf stretches).
Carole, it's an unfortunate thing that can happen to any of us. You probably need to be careful what you eat maybe up to two days prior to your race. Try cutting right down on things like coffee and dairy stuff over the next couple of days and stick to simple 'bland' food stuffs and see how you get on.