What would cause blood pressure to rise when standing sitting is 100/60 and standing is 129/90. have been having undiagnosed chest pain and palpitations and dizziness. echo normal a year ago. normal stress test a year ago?

I found that most healthy people's blood pressure increases on standing as reflexes occur to maintain adequate blood flow to the heart and brain. A profound drop in BP on standing is abnormal and dangerous. Your cardiologist has reviewed your 48 Holter Monitor or long-term outpatient monitor to determine whether you're experiencing significant cardiac arrhythmias when you have palpitations