Why!!!!

I am at my 1 week mark. The first 3 days were hell!! After that it didn't seem too bad,quit smoking now, I had cravings but they passed.Today I am just down. My brain is in a fog. I can't concentrate. I just want a smoke. I won't do it but I want it sooo.... bad this time. The other day I blew up at my bosses wife. To make a long story short she asked me to pay one of her personal bills with the company money. I looked at her and asked her if she would like me to just pull that right out of my a**. I could not believe I said that,smoking cessation, it is not like me. I am really on edge today. I thought the bad part had passed. Maybe tomorrow will be better.Leslie