We know that 'lack of Synthroid' is NOT the cause of any thyroid problem. Exposure to chemicals, e.g. perchlorate, common food intolerances (e.g. wheat/dairy), adrenal fatigue and nutrient deficiencies are the cause of 'hypothyroidism' in the vast majority of cases.
An F3 felony is a shorthand expression for a class or category 3 (or III) felony in jurisdictions that use numbered offense categories. What such an offense is punishable by and whether it is punishable by more or less than an F2 felony depends completely on the laws of the jurisdiction in question.
A Class B felony in New York is one step below murder, meaning that homicide, armed robbery, rape, drug trafficking, or a violent assault could all qualify for a Class B felony in New York. Our firm probably handles more of these and the Class C felony New York than other types of crimes. Class A felony (New York) is the highest degree of felony and is reserved for crimes such as murder or treason. In many states a Class A felony would involve use of capital punishment.