Your blood pressure can also increase with POTS. That is the case for me. Mine increased by 34/32 on standing. You may want to video tape your results; my doctor did not believe me when I told her I went from 60 to 120’s on standing. Once they get it in their head that you’re a hypochondriac b/c of all the weird symptoms – game over. It was my ND (Naturopathic Doctor) that took my pulse and BP lying down and standing and confirmed the POTS. I just haven’t had any testing and the MD’s roll their eyes when I mention an ND diagnosed me.