Hi tambourine queen, I can identify with all your symptoms and more, I've had the twitching lip and also a twitching eye lid, it's lasted a few weeks even months at times and then just disappeared, like you I try to wait as long as possible before contacting the gp because after years of having these weird strange symptoms I know most of the time they are related to anxiety and hormones, I too have gone down that road of diagnosing myself with ms especially since I get horrible pins and needles, I've actually had a brain scan and all was good, try not to worry I know it's hard, just wanted to reassure you your not alone in the strange twitching, if after a few weeks it hasn't gone contact your gp just to put your mind at rest.