Hi I am in healthcare too. My twitches, which I now call Benign fasculations started 3 years and to me they started when I developed healthcare anxiety from a weird stomach scare. I don't have any other symptoms beside once I turned 40 i have developed back pain and leg tightness which I feel stems from my back issues. My neuro doc did an emg and head mri and full body assessment and all were normal my labs were normal. I still get the twitches there are many people on here who suffer from these. I pray one day they will stop. Mine are constantly in my calfs. So weird almost feels like someone's poking me thru my skin.