Help pls: has anyone experienced a high heart rate on nortriptyline?
I've been taking 30mg nortriptyline nightly for migraines for around 2-3 months. Over the past month, I've started getting intermittent episodes where my resting HR is around 105-115, compared to my usual 80-95. When standing, it can reach around 115-120. It is usually there for a few hours/the whole day.
It happens a few times a week rather than every day, and during these episodes I sometimes feel like I'm breathing slightly harder than usual, and I sometimes feel a thumping in my chest, can’t tell if there is much chest pain or just discomfort, and other than being anxious about it I guess I feel okay.
I've been to a&e twice and seen my GP, and my ECGs have all been normal with no afib. I also had a 24-hour ECG about two weeks ago and am waiting for the results.
Has anyone else experienced this on nortriptyline, particularly at 30mg? Did it improve or did you have to change medication?
Any advice is greatly appreciated as I am very worried right now 😿😿