I was using a cervical decompression device which caused a strained neck, and it obviously made one of neck's vertebra very loose because I could control its position just by swinging around my neck causing various phenomena to happen. Swing it to my left, left ear-ache; Swing to my front, chest pressure; Swing to my back, dizzy/vertigo (Room looks like it's vibrating left/right.). It was a balancing game trying to keep it in the center so not to make my day too symptomatic.
Anyway, that was a week ago. It seems like it's been healing up for the most part. It's no longer quite the hassle to maintain like it once was, but it still seems to have some symptoms, tends to be more symptomatic in the morning and evening. Swinging the head forward seems to knock the neck vertebra forward and seems to reduce my heart's output. I can tell because I get very easily winded as if I had heart failure, I feel like a tired, old man that's about to pass out, sometimes I feel some chest discomfort, it's absolutely ridiculous. The solution is very simple - I knock my head back, and the vertebra does a double "crink,crink"(It used to click) and it puts it back in place and I feel fine. I can run miles with aplomb, and I can climb mountains like the 29 year old beast I am. I /suspect/ it's pressing against the sympathetic nerves to the heart in the neck (I'm not exactly sure where, but I'd hazard a guess somewhere between C5-T1), and its reducing the heart's output. The heart has other lead-ins from C1,C2,C3 and directly from the brain-stem, so luckily that's keeping me alive, at least long enough to fix it.
Anyone else have this experience? This just seems so weird, and I was concerned about a week ago that bending my neck forward would cause heart attacks, because it very clearly felt like it at the time. I had to go to sleep without my pillow, because I couldn't risk my neck bending forward triggering one. At the time, the idea seemed absolutely ridiculous and I thought I was going to die at any moment, but it's been healing for a week now and it's a little less traumatic than it once was, and I actually kind of understand what's going on now. (Whereas, it was completely mysterious why bending my head forward seemed like it was triggering a heart attack. Made no sense to me whatsoever at the time, didn't fit my idea of how a 'heart attack' normally acted. Felt like I was playing some mysterious game with the grim reaper, where I had to quickly figure out the rules or DIE.)