Those articles were helpful; thanks a lot. The 'Recognising Needs' one in particular resonated.
I actually think it might be something else though: slight caffeine overdose. I have always been very sensitive to caffeine (it produces anxiety in me) so I drink green tea or normal tea throughout the day. However, as I've read on here now that I've quit smoking perhaps my body can't handle the amount I was drinking. I say 'was' because I had two cups today (as opposed to about five) and did not have the craving episode...if that's, in fact, what it was.
Does the lowered tolerance to caffeine only last during the first 72 hours or is that a new permanent thing? Just curious.
Anyway, perhaps I sounded a bit spoiled in that message. I was very on edge and fed up with the craving sensations.
Thanks for your help.