Is burning pain in shoulder, top of arm, and tricep a symptom of radiculopothy nerve pain? i have ddd, disc bulge & moderate spondylosis in c6/7.

Yes: That pretty much sums up radiculopathy nerve pain.

Can be: But if your ddd and disc/spondo issues are at c6-7, this is most likely not the cause. Shoulder and top of arm would more likely be C4 or C5 level. With your history I would see my neurosurgeon or pain management physiatrist for evaluation. Not uncommon to have disease progress. Your history of C3-C7 disease based on the history you provided suggests some worsening. Best to be evaluated.