Hi! I am a 30 year old female who has been addicted to vicodin 10/325 for about 18 months now. Not a "huge" addiction, I only take 2 a day. One in the AM, and one in the PM. But, nonetheless an addiction. I take them to calm me, because Ihave such a euphoric feeling when I do take them. I have noticed that when I take a 3rd, which is rarely, I experience violent heart palpitations. Has anyone else ever noticed this when taking Vicodin or Percocet? Seemed strange to me, but every time a take a 3rd, it happens. I appreciate anyone who can offer some advice.