Wait, you're going in 2 directions at the same time: "moved from Ohio to Florida" and "I left Florida." Whatever, your body is probably adjusting to different things floating around in the air - mold, pollen, even the dust can be different. Drink lots of water to flush whatever's bothering you through your system. If it doesn't clear up soon, might be a good idea to visit a doctor and make sure you don't have a low-grade infection.
A sore throat result of irritation or inflammation which is caused by acute viral pharyngitis. Other causes include other infections of streptococcal pharyngitis, trauma, and tumors. I would suggest that you consult your doctor for more professional help.