Thanks everyone.
It comes and goes and seems to get worse when I think about it.
The scariest thing about it is that I've, of course, convinced myself it's fatal and that I could die at any moment. Typical. I had the same thoughts when I thought I had diabetes - that turned out negative.
And it's not just thoughts. I can have these 'flashes' that I can actually imagine what it would be like if I dropped dead - right there. I worry about what my girlfriend would do, how people would cope.
It's a horrible disorder, and I would sooner have any physical impairment.
Having said that, I am recovering. I no longer have panic attacks, which I'm forever grateful for.
Things have been quite stressful lately. I've had my brother staying with me the past 2 weeks. In some ways it's been positive. I've been forced out my comfort zone and realised I can handle it there.
But in other ways, it has taken its toll.
The headaches and irritability are filtering through, but progress is a slow thing to make up.