If you've ever gone through a panic attack, you know how challenging it can be to explain your experience to someone else; it often feels like your whole world is falling apart.Some people might feel as though they are losing control or even experiencing a heart attack. At times, there is an overwhelming sense of impending doom. None of these sensations are enjoyable. You may have heard these described as panic attacks or anxiety attacks, and you might be wondering about the distinction or if they are fundamentally the same.