Right now, they probably don't want to mask the symptoms too much until they can figure out what's going on. I know that seems barbaric -- it's terrible to suffer like this. But they need to know exactly what's going on with you until they can get a handle on what's going on.
If you just cannot stand it anymore, TELL THEM. Be your own advocate, and tell them exactly how you feel. They're workiing for YOU -- so make them give you something stronger!!!. Sometimes we have to stand up and fight for what's due us.
Doctors can be stubborn sometimes, but they're not in our body either, and they don't know how much we suffer!
So demand something stronger! Tell them you can't sleep at night, and it's difficult to do anything. I'm sure once they REALLY listen to you, you'll get something stronger. You just have to get them to LISTEN. God bless and please take care. Hugs, Lee