Yes, to both hives and itchy skin — from different posters over time. I experienced the itchy skin during my bout with Graves, which was, in my case, due to excessive dryness. But itchy feeling on the skin and elsewhere on the body might also be due to a drug reaction. I itched everywhere including my eyelashes with a drug reaction a couple of times. The only way to know, is to consult with your doctor, and I wouldn’t wait until the appointment to call.
Since it’s the weekend, and you may not be able to get through to talk with the doctor to a PA (but try — if it’s an allergic reaction waiting might not be desireable), you can try using a VERY good moisturizer and see if the problem is dry skin. Even petroleum jelly, applied to WET skin, can provide good moisturizing. Any moisturizer, to do its best, needs to be applied over wet skin.