What are the dangers of thyroid level being 56 when it should be 3?

I suspect that you're referring to your TSH or thyroid stimulating hormone being elevated.  If that's the case, you have hypothyroidism or an inactive thyroid which is associated w/decrease energy, weight gain, constipation, cold intolerance, etc.  

However, if you're referring to either T3 or T4 being elevated, then you actually have hyperthyroidism or an overactive thyroid which is associated w/weight loss, diarrhea, heat intolerance, tremors, anxiety, palpitations, and even atrial fibrillation, etc.

That's why it's so important to know exactly what test you're taking, the normal reference range and even the units of measurement.