We are definitely on to something. I experience the exact same "attacks" beginning a week or so before my period. Often, I am sound asleep and jolted awake by their severity, and then find myself pacing & deep breathing until its under control again. My symptoms include lightheadedness, dizzyness, shallow breathing, chills afterward, chest wall pain, and rapid jumpy thought patterns - all surrounded, of course, with the sheer terror of dying and leaving my 3 boys alone...
This also began after the birth of my second child, and is as regular as clockwork. I have seen every doctor about this - so far, the cardiologist says my heart is structurally normal, normal, EKG's, etc..., I've been seeing a a psychiatrist for 4 years following up on the "panic" side - and have been taking Zoloft. My OB/GYN first though it was post partum depression/anxiety, and now thinks it could be hormonally related since I'm 38 and could be starting perimenopause.
All of this "reassurance" still doesn't curb the fear each time they occur - I feel so out of control.
Does anyone have any miracle cures or at least coping mechanisms? I feel so debilitated!