Thanks for all your useful comments and support. Today is day 7.
Yesterday, as I suspected was hard.
I like cooking at weekends (takes my mind off work) - Sunday is always big roast day but as soon as I start cooking, the drinking starts. Managed not to drink, kept drinking sparkling water instead and green tea, and normal tea and ... well anything but alcohol.
Managed OK, until about 8pm when I suddenly got really anxious, short of breath and angry. Weird feeling. Bit the wife's head off a couple of times (and apologised but...)
It last for about 1 hour, had a cup of green tea and sat quiet and it went away but not nice at all.
Anyway, it was a victory, I managed to ignore it.
Onwards and upwards.