Since changing from Synthroid to Levoxyl almost six months ago, I...

Since changing from Synthroid to Levoxyl almost six months ago, I've gotten worse. I have much of the same symptoms as the one's i've read ie: headaches, swelling, numbness in fingers, fatigue, body aches, depression, hot and cold, but the latest one is very concerning for me, I never had allergies before, and now, my throat is always itchy, my ears are itchy, and it's making me crazy. Also, my fingers get numb and now at night my hands get very hot and itcy also. Can anyone out there relate? Thank you