OP, first of all, welcome to Bluelight! I'm about to give you a diatribe that is probably going to be unappreciated, but here we go. Benzodiazepines are meant for strict applications of 2-4 weeks at most, as when they are used chronically, pesky and long-lasting symptoms tend to emerge. Withdrawal from these drugs is known to be quite devastating to the user. One of the primary issues faced by long-term Benzodiazepine users is the fact that their Post-Acute Withdrawal Syndrome tends to be debilitating and long-lasting.
I've written about my Grandmother and her fucking shmuck physician in the past, but yes, she is going through something quite similar right now. She is experiencing Benzodiazepine withdrawal and the woman has never smoked a cigarette. The syndrome tends to take quite a long time to fully abate. I see and talk to a lot of long-time prescription-users, many of whom were never illicit drug users, combing "the streets" for loose Benzodiazepine pills, "not so I can catch a buzz, just so I can feel normal". It's often overlooked, as the spotlight is really on the Opioids right now, despite Alcohol continues to kill at exponential rates.
The PAWS is most likely to last for the foreseeablt future, but there are things that you can do to help mitigate the symptoms. Are you a Cannabis user or would you consider becoming one? This is just the start. I've got a lot of shit in my wheelhouse guy.