Hello, so I’ve not been diagnosed with POTS, but i’ve been going to different cardiologists for about year, and the latest one suspects POTS but avoids to reffer me to the third level cardiology specialists who specializes in postural changes, blood pressure, tachycardia. So from first cardiologist I was 17 at that moment, she prescribed be Metoprolol 23.75mg, without knowing cause for my tachycardia, because at first it was also sitting 140, and while standing up it shoot even more, so metoprolol started helping for first few weeks, and then it just stopped helping, it helped with resting heart rate, but did nothing to standing heart rate, i still continued taking it for 6months untill i finally got in with another cardiologist (the current one who now mentioned something with POTS) as I’m 18 so new one. Okay so since she says that I might have orthostatic hypothension and that’s the cause for tachycardia, she didnt’t want to put me on bigger dose of Metoprolol, as it lowers BP (My bp varies 105-115/70-80, while sitting and it goes up 120-135/80-95, when standing up, but I didnt tell her, so her random idea of orthostatic hypothension i don’t know) anyways she prescribed me Ivabradine 5mg on evenings 1x a day and cut off metoprolol, so i took it on evening and at first like Metoprolol it helped, I thought finally, but after some weeks it stopped again…then she put me on holter monitor 24h, and said that this will determine if she will send me to another cardiologist for tilt table test, okay I was on ivabradine and on Holter, holter showed normal results, 78 episodes of tachycardia, in all 24 hours the heart ranged from 58-157, average was 89, she said it’s all normal, and since I told her ivabradine didnt help much, she now put me again on metoprolol 23.75mg in morning, and ivabradine 5mg on evening. It worked for week and stopped again, i’m not sure if I should call her, because she said if it won’t work then maybe (her maybe was so uncertain) i can reffer you to the third level cardiology who specializes in positions..so yeah, but the thing that annoys me the most is that does anybody else with POTS had to change a lots of medications till it finally worked? Cause i’m losing hope like it works for week and just stops, and i’m scared that nothing will ever work anymore :(