Advice

I have been dealing with POTS symptoms for about 4 years. My heart rate usually is around 130 to 140 bpm when standing. Pretty normal average standing heart rate for me. Over the last two weeks it has been between 150 and 170 bpm. Also most of the time I don’t feel it increasing that much until I check my heart rate monitor. Has anyone experienced something similar? Have any advice for dealing with something like this?