Thanks for your replies to my first post everyone. Comforting to know I'm not alone in feeling overwhelmed by this, but I'm blown away by how many people are enduring this and find ectopics really debilitating. It's so sad that our feeling are dismissed as unimportant by people who have no idea what it's like to live with this experience. I have other, much more serious, health issues that don't freak me out, so my GP saying I have health anxiety is I load of rubbish. I have ectopic anxiety, which I don't think is unreasonable! I'm avoiding the medication option as I have naturally very low blood pressure and can't risk it dropping any further.
I found the vagal nerve stimulation helpful, and have worked out that bad posture is a trigger, as is my reflux issue. The days when my stomach is playing up the ectopics are much worse.
Keep sharing your thoughts and stay strong. Sending positive thoughts to everyone, especially if your having a bad day x