How do i treat my panic attacks that feel like their getting intense again, i have been for every long been able to manage it but now it feels unmanageable, i get this looming feeling, my heart races & i feel this intense feeling come over me?

You have the right idea as to managing the symptoms. Break them down into manageable components. For example, learn deep breathing which increases parasympathetic nervous system activity and decreases sympathetic activity. stretching and exercise can be incorporated, as well as singing to augment your control. Singing out loud or silently can place you in a comfortable place.