I think for the most part we are suffering from some form of anxiety. Things get on top of us, miff us off - we're hanging on waiting for something, an answer, a divorce..tired from always trying and getting so little reward, getting older, falling apart, past our best. We only live once and never get a chance to feel how it should be, we are always changing - new sensations seem like warning signs for something far more serious. I get the left leg vibration, have it now...and it's right after a bad fight with my family, full of guilt, regret etc.. and pop! Muscle twitches, and the leg fires up again. I think there is more going inside of us than we ever realise. Mental health\well being has a strong hidden effect on our physical selves - at least I've noticed when things seem bleak, or not quite on an even keel, it's like open season on little bugging things, from eye floaters to just feeling drained. Life is wearing us down, and we have so much to be paranoid about. Accepting that is what I'm going to try and do - ignoring these symptoms really does make them go away.