I seem to have pinched a nerve in my back. im not able to move much without being in severe pain. do i need to see a gp or would over the counter ibuprofen for a day or two help ease things?

You: Need to see a doctor for accurate diagnosis. Sometimes doctors may order radiologic examinations to rule out fracture or tears

You are suffering : It seems you are suffering. You should not be see the doctor for a diagnosis. Then you will have a treatment plan that will help you

Both: You should do both. The Ibuprofen trial should help the doc in further decide about recommendations. Make sure you have a clear history about timing of the pain, preceded or not by trauma, variation during the day, what is making it better or worse, etc.