I have thoracic outlet syndrome which includes (for me) the type of pain you are discussing, plus neck, shoulder, arm, hand and some other neuro symptoms.

The reason I am writing is about Lyrica.

Within three months of taking Lyrica I developed high blood sugar of 500 (normal is 100 or less) and after 6 months I gained 50 lbs. out of eating almost nothing. I stopped it, lost 60 lbs. immediately, but I am now diabetic, as I believe, a direct result of Lyrica.

I have to test twice a day, take meds, eat differently, etc. For 47 years I had perfect blood sugar, and then within 3 months, the side effect listed by Lyrica happened to me. I now find that I am far from alone in those that have developed diabetes, but the doctors won't admit it, for obvious reasons.

Also, Lyrica did nothing for my nerve condition.

So be careful, take your blood sugar faithfully via blood work, as well as liver, which also went with raised enzymes - and watch to see if you have any weight gain.

God bless you in your search for a cure for TN.

A neighbor used neurontin and her symptoms resolved within 6 months, but as you point out, there can be so many factors of causation that investigation is a very important tool.