is it possible to have a root beer addiction?

i dont like sweets so i wouldnt day its sugar related. i hate any other soda i will not try it (besides sprite cranberry) and im ADHD so caffeine only really makes me tired instead of energized. also one more thing: i will ONLY drink BARQS root beer from mcdonalds drive thru ONLY!!! i have no intentions of curing , been drinking one beer a day to keep the mug dogs away but i would like to know if anybody else has this experience