Yes. I feel a little "duller" if that makes sense. Also, as I said earlier, I gained about 10 pounds in a month or so. I typically only eat one meal per day, in the evenings. I work a lot and I don't ever feel hungry unless I am off and sitting around, then I have a tendency to eat more. The nic gum is a slight stimulant for me. Maybe it's just slight because I smoked and chewed for 30 years so I have a high tolerance for it but none the less it does seem to keep me just a little more alert. When I first stopped the chew and started the gum I would chew 2 pieces at a time, so 8mg. I weened down to one piece at a time of 2 mg over 6 or 8 months and then quit completely. Then I gained the weight and that's when I talked to my DR about it and he told me to chew it all I want, he said there is nothing bad about nicotine itself. So I started again with the 4mg but just one piece at a time and I've been chewing it ever since. I don't know if you caught the teeth comment earlier but I really think that since I started chewing the gum regularly my tooth health has improved. I never have gum bleeding anymore. A couple teeth that I had that I thought I was gonna lose because they were kinda moving around on me are now firmly rooted and I had a real cold sensitive spot on the sides of 2 teeth that are not sensitive any more. I don't know for sure that it is the gum but it sure seems so.