There could be a physiological response here. Our bodies tend to start producing cortisol & other catecholemines in the early AM hours in order to prepare us for waking. I have had some pretty bad morning anxiety at times, but not consistently. I would think that even a dream could increase these stress hormones, but so could other things like…low blood sugar, low oxygen, sleep apnea, & elevated carbon dioxide, peri menopause, thyroid conditions. The body sees these things as a stressor. I would get these things checked out. Next…I would keep your medication at bedside w/a bottle of water. Wish you the best.