I think 1 week is too short of a period for you to appreciate the difference when you go without it, because - as I learnt from the multiple times I went without the lovely MJ - it really takes a time for it to really leave your system, and for the (light, but bothersome) withdrawal syndrome symptoms to wean away.

The first week without weed is stressful because your body is still getting used to function without THC, and anxiety symptoms are better checked by mental health professionals - masking them under the delightful narcotic effects of cannabis won't be of any help to you.

I write that meaning to give you a hearty ans well-meaning heads up, alright? I don't really mean to be condescending or anything, I just think that anxiety is really serious shit and can eat away at your quality of life.