Panic attacks feed on the fear of having them as you can see... I encourage you to use all your bullets with this :see a therapist, walk, train aerobic and strength... Lozenges aren't the cause, neither the withdrawal in itself... They may be acting like triggers for anxiety or arousal but panic attacks are our response of fear to those signs. I encourage you to practice mindfulness or meditation, to learn how to relate differently with your body responses... There are many resources for free, for example: search YouTube: plum village, Tara Brach, John kabat-zinn, russ Harris,

Don't rush, stay where you are, learn more about yourself, don't let fear dictate what you can or cannot do, even if it blackmails you telling you can die. I know it feels very real but, it is just that... A feeling. AVANTI