No sleep, palpitation, panic, neck pain.

Good day Friend,  I can understand your concern. What you are going through is a panic attack caused by overthinking or overwhelming negative thoughts in your mind. Moreover also be aware that medicine is just one part of a treatment for anxiety management. It can just control and give relief by  triggering few hormones. If you try to understand, the root cause behind anxiety is ,overwhelming thoughts due to fear, worry, insecurity or some kind of stress. Medicine can't control such thoughts or overthinking. Similar as body and mind are closely interconnected, any psychological imbalance can easily affect the physical body to cause panic attacks,  short breath,  nervousness, constipation, digestion issues,  sleeplessness, skin issues, PMS and many more. So such symptoms need next level of complementing therapy  called psychotherapy or mindset change therapy or techniques to have a holistic treatment approach. Be positive.  Feel free to reach me online for further assistance and assessment of the physical and emotional symptoms to recommend suitable psychotherapy solutions. Be positive. You will be alright soon