Clomid allergy!

I have taken clomid to get pregnant twice before no problem. This time I seem to be having a serious allergy. Online I found people say it's swelling and bug bite on their body. Mine is in my throat! I feel like I have strep throat. It is very painful tomorrow am calling my Obgyn. Am at a loss for how crazy this is! Never had I had any allergies. Anyone else experience something like this?