 [ Symptoms ] i have been dealing with a shaking sensation when my muscles are under stressload [ Disease ] hi i recommend you check for renal tubular acidosis and parathyroid problems start by testing magnesium calcium phosphorus levels along with urine test from there you can know your next step if its just low vit d levels or more serious problem personaly i do not believe its a neurological problem also adrenal gland and stress related issues can not be roled out good luck