We can find stray pills in the darndest places!

What you are describing sounds like very typical, garden variety withdrawal from opiates stuff to me. Although you are very special, in this, I think there is nothing special at all about what you have going on. This what it is. Actually, not belittling your suffering in any way, but it could be quite a bit worse, believe it or not. So, very glad it isn't. And benzo withdrawal is felt by many to be one of the very worst withdrawal syndromes, in part because it just goes on and on and on. And akathesia is just pure torture. So sorry you had to go through that.

Stay strong. Hopefully you can get that prescription filled tomorrow. Sending you positive vibes.