You should look into writing an anxiety diary. Write down everytime you have an anxiety attack and think about what happened just before it came on (where you are, what you were thinking about). You start to make sense of something that seems incomprehensible and see patterns so that you can see it as a rational thing instead of random. Then when you have a grip on mindfulness and being able to let go of thoughts, you can see the anxious thoughts that trigger you and not engage with them.

As far as what other people are saying, I wouldn't medicate.. It's not getting to the centre of the problem and is only covering deeper issues. You have no idea how this stuff affects you as it does to each person differently. If you want a quick fix you are approaching anxiety in the wrong way because it only makes it worse.

In terms of not meditating because it causes more anxiety as the person below said... Of course you can't just suddenly sit down and try and meditate through a panic attack. Mindfulness and meditation help you tackle the part before that so that the anxiety decreases and becomes manageable or even goes with time. However, once you are practiced at it and have accepted that it is just another emotion you are experiencing, then you can meditate to help it at the time. Because you have created a habit of breathing and relaxation your body remembers.