I'm a 56 years old female with type 2 diabeties, and on medication for high blood pressure and for cholesterol . Recenlty my cholesterol medication was change from lipitor to Enalapril 5 mg 1 time a day. I don't know if thats the cause of the tinkering feeling but its a strange feeling and stronger every time it happens. I'm really scared. What can it be ?

Sandy