Lawchick,
The phobias begin after the attacks, it happens when we wish to not be in a place where a previous attack has taken place, or while driving, or generalized fear of "having an attack" while out and about.
Panic attacks at first just happen out of the blue, no anxiety is needed, although stressors over the last year can indicate if you look back that your body was doing too much, or other factors in your life, getting married, new house, new baby, new or loss of job, etc.
If your doctor has done the proper blood work test to rule out overactive/underactive thyroid, etc. Your heart tests are doing well, I would in my experience believe you do have panic disorder. Question, I can understand your GP thinking you do, is there some reason why your two pyschologist don't ?
The inital extreme dizziness could have been panic itself, the high BP, starting on a beta blocker, Im on that too, and does then to make one weak and tired in the beginning.
Having high BP, and rapid heartbeat can make one dwell on your health. Same again happened to me, first attack was at 28 years old, no history in my family, and Im relatively thin, my cholestrol, etc. was good. That is what frightened me the most, after having the attack, horrible enough itself, I was fine the next day, I didnt dwell on it, I went to a GP in town and not my regular doctor, as a month before I had my son and was anemic during my pregnancy. I thought possibly I was iron deficient. He told me you have high BP, here take these pills. WOW, I freaked, shook on the way home, and had attack after attack, after attack for days. I was born with a heart murmer, and I obessessed about my heart and blood pressure. Four days later my regular doctor had seen me and told me, but I already had cluster panic attacks by then, that after having a panic attack, your blood pressure would be elevated for up to 24 hours due to the hyperventilation symptoms that went with the attack. He stated the reading the doctor gave me was borderline and I should have been monitored for at least two weeks before saying OMG, You have HIGH BP, thus freaking me out.
I get the tingling sensations, but pretty much can handle it now since Ive experienced those for 13 years and know its the anxi