Hi, My Son Has Been Diagnosed With Graves Disease. He

Hi, My son has been diagnosed with Graves disease. He is very irritable, hands shake, and eyes bother him. Also, he does not feel good generally and has trouble sleeping. He is on medication, but wondering how long will it take before he starts to feel better. He is a 46 years old and also has been experiencing hives. Are all of these symptoms that go with Graves disease? Thank you