Lighter cigarettes do have less nicotine in them than regular cigarettes. Therefore, if you are smoking the same amount of cigarettes now that you used to smoke before, it is likely that you are taking in less nicotine on a daily basis than you used to, which could lead to some symptoms of nicotine withdrawal. Symptoms of nicotine withdrawal can include fatigue, mood swings, cravings, and headache
. Nicotine withdrawal is not dangerous, but it is unpleasant as is the primary reasons that many people have trouble quitting smoking.
As you know, smoking is not very healthy for you, and even light cigarettes contain a substantial amount of nicotine and other contaminants. Since you have already made the switch from regular cigarettes to lighter cigarettes, you may want to talk to your primary care doctor
about quitting smoking entirely, something that would be a great step for your health.
These days, there are many different strategies that can be used to quit smoking, including nicotine replacement therapies (like patches, gum, etc) and multiple medications that are quite effective at reducing cravings. You could set up a visit with your doctor specifically to discuss smoking cessation strategies, and they can go through all of these options with you.