Yeah. That feeling of "needing something" dies down with time. Quitting is a very dynamic process that evolves over time. You are wrapping up the most intense part, when it can feel like 24/7 effort as you fend off craves coming at you like some kind of video game. Later phases are more subtle as you change the way you think about not-smoking and so forth. Patience is important.

Keep in mind that your brain receptors are a mess right now. They have been totally desensitized so that nothing causes the dopamine release that makes you feel contended and rewarded. For years, nicotine had hijacked the receptors and was the only thing that gave you the aaaahh feeling. Now that you've quit nicotine, the receptors are quickly returning to normal sensitivity so that food, warmth, good music, or whatever gives you a feeling of content. Until that re-regulation occurs over the next few weeks, you are in no man's land. Nicotine is the only thing that will cause a dopamine release and you've stopped using it. The next couple of weeks might leave you feeling a bit "empty". It's all part of the process. Just ride it out and marvel at the journey. You've got the toughest part behind you. Use that as motivation to power through another week.