Hi mcanaman,
Welcome to the NeuroTalk Support Groups.
I'm sorry you're in so much pain and having difficulty sleeping.
My suggestion really regarding taking the Lyrica and the Nortriptyline together is that you could perhaps phone your doctor's office or your pharmacist and ask them about that. There are also drug/drug interaction checkers online, but if in doubt it's best to phone the pharmacist who knows you.
There are several other forums here where you may find info and support for your pain issues.
Spinal Disorders & Back Pain Forum
Chronic Pain Forum
Medications and Treatments