I'm addicted to nicotine gum should i be worried?

Not particularly: Since it is far better than being dependent on the nicotine in tobacco, which comes with organic agents, formaldehyde, carbon monoxide and assorted other poisons. The gum is not great for your jaw and teeth, and can cause TMJ pain and pull out fillings. I would recommend switching to lozenges, or better yet, go to an equivalent dose patch (14-21 mg) for a week then cut back for 1-2 weeks ; stop.