Also, as I can't seem to edit my post, I've missed some symptoms. They include stomach aches, nausea (nearly every day now), a sense of "uncomfortableness" living in my body. Also, today, I was doing something and realised I was holding my breath. While I was doing so my heart was pounding heavily. Every time my heart beat, I felt my eyes shift very slightly, and my visio shifted very slightly too. Like a subtle shake of vision, every time my heart pound. When I stopped holding my breath it went back to normal. Don't know what that was about.