@jcb721 Hi, in the UK it's quite common for an anti epileptic and a anti depressant, both with pain relieving properties to be prescribed at the same time.
It's also a game of chance whether it will work for you so often people will try multiple medicines. It does seem that lamotrigine (if you can avoid the dreaded rash) with Duloxetine seems to be quite a favoured combination.

Personally some sunshine on a still day or exercising in a warm hydrotherapy pool is about the most effective things I have found. The exercising seems to provide a benefit for 2 or 3 hours after, especially if you can keep warm