The past 2 weeks i've just been really addicted to chewing gum. is it really that bad?

Depends: sugar-containing gum is bad for your teeth and too many calories. Sugar-free gums can have a number of artificial sweeteners, some of which can cause problems if you take in too much, such as diarrhea. Some people get tempero-mandibular joint problems (TMJ) with too much gum chewing as well. If it is not hurting your jaw, if it is sugarless but not causing any GI side effects, its probably ok.