I suffer from insommia. It could have been me writing your message. I not sure of the cause. The most probable cause is Prednisone. I always took it in morning, but now my Rheumatologist has me having take some in the morning and some at dinner. That made the insommiia worse. I was taking sleeping pills, but they don't mix now wilth my new medications. I was talking nonsense, so my husband wouldn't let me take it. Then I developed this nerve pain and muscle weakness in my knees. So, they have me taking amitriptilyne and I tell ya, I slept like a baby the first night when my dose went to 75 mg. However, I have had some wild nightmares some nights. So, if you are still in a fair bit of pain, as your GP about amitriptilyne, if you feel that is something that will help you out. Too, my pain is much less in the morning. I don't know if it is the drug or the fact that my legs rested all night (which is also indirectly related to taking the amitriptilyne). I am not sure if amitriptilyne can be taken in small doses during the day or if it is strictly prescribed for night time?
Hope this helps.