Thanks for your posts everyone. Sorry to whinge about it, but it got me down. After the carbs/weather/routine change on holiday, my Lantus has shot up from 6 units to 16, which explains the rubbish sugar levels. Now I'm back in my routine, I was able to figure this out.
Brennan, I've carb counted for a while now. I know that most portions of chips have about 60g of carbs, burger buns have about 30, a bowl of pasta about 75g.
Smidge, sounds like you've had exactly the same problems as me! I reckon once I've put my lantus up tonight, I should be back to normal. Let's hope the hba1c doesn't suffer to much!