Facko, just to add a little to what Wrlprkhnx 
said, when your gf hinted that you smelled funny, that may also have been a major hit. Sometimes when people who are used to and like our own normal pheromone signature, they react with exactly those words. “You smell funny.” Their subconscious picks up the new signal and the brain scrambles for a way to process it. Smell and pheromone response are very closely connected and the activity in her mind even went so far as to wake up her consciouness to the idea that there was a weird “smell”. Go lightly around her until she gets used to your pheromone sig changing. It may take a couple of weeks if you guys are close.