I have generalized anxiety disorder but my major concern is panick attacks whenever I'm onto a period of stress and have not slept well I'm more susceptible and if a tense situation occurs in my life my blood pressure spikes sometimes to high levels 190 / 100 i have recorded in some of the highest ones .
If i take xanax the blood pressure goes down to normal . My question is ,should i hold and wait for the panic attack to go by its own or should i take xanax as soon as this happens ? Normally i would resist the panic attack  but I'm trying to detox from 0.5 mg daily  dosage of xanax and i have fear to suffer a stroke or heart attack  

Note not always my bp goes that high in panic attacks today i had one and it got to 150/94.