Thank you for the information,
When you have pain in the hip and the carpal tunnel symptoms are in both hands, I feel you will need further evaluation by an orthopedic or a spine specialist.
MRI spine can help to find out the severity of the process.
In early stages of carpal tunnel syndrome , stretching , massaging , ice & splinting at night may help.
In some cases steroid injection into the tunnel , or surgery is needed.
As diclofenac is not relieving pain, you can try otc ibuprofen, naproxen can be tried.
You can apply warmth.
In pain relief both cold or heat can be beneficial.
You can try either to check which one give good pain relief.
Please feel free for any follow up query.