Every time I start to meditate, I start having severe panic attacks, and can't get any further. I've tried all sorts of different meditations, guided, unguided, with and without different music. I've tried all different positions. Regardless of how I do it, if I start to getting really deep, I immediately get this sense of foreboding, like something terrible is coming, and it ends in a severe panic attack where I have to lay flat and do breathing exercises until it passes. I can't seem to actually mediate, or it ends up that way.