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.
What Is a Felony? Question: What Is a Felony? Answer: A felony is different from other categories of crime in terms of its level of severity and the amount of punishment the convicted felon can receive. In the United States, a felony is a serious crime punishable by more than a year in prison. Most states have laws that classify different levels of felonies, from the least serious to the most serious. Some states classify felonies 1st degree, 2nd degree, etc.