One of the symptoms of PoTS that I’ve struggled with is the constant feeling of being on edge. Because my Autonomic Nervous System has gone a bit haywire, my heart rate is going faster than it should when I change position (see: what is PoTS?). This means my body has panicked and gone into the ‘stress’ response, or ‘fight or flight’ mode in order to try and compensate. This response involves the release of norepinephrine, a type of adrenaline. This helps to maintain a high heart rate and then results in a general feeling of anxiety which is very frustrating especially as the body does not need to ‘fight or flight’. I’m wondering maybe that’s why I was drawn to work in A&E because when you’re constantly ‘wired’ with adrenaline a little bit more doesn’t really register! I’m also able to function with a huge amount of adrenaline in my system and you wouldn’t even notice because I’ll seem so calm. My body also has irrational responses to sudden loud noises like people shouting, the doorbell going or the phone ringing which is really annoying!
Ivabradine is not stopping my heart from jumping when I stand, but my heart rate (for the most part) is not getting high enough to make me feel anxious, and when it does it’s returning to a sensible range much sooner so I’m feeling really chilled out.
Its very strange getting used to my heart slowing down so much, it feels really heavy and sluggish, almost like it’s going slower than the rest of my body, so for the majority of this week I’ve been feeling really drowsy. Lots of napping has taken place!