@lizziel1
It may be the combination of Gabapentin and the Percocet that are causing the respiratory issue.
All anti-seizure medications
including Gabapentin have suicidal ideation warnings. It can cause anxiety and depression. However, it is also a mood stabilizer and regularly prescribed to treat anxiety.
You might ask your physician if the combination of Gabapentin and percocet could cause the chest pressure and if it's something to be concerned about.
I'm sorry to hear you suffer from Pudendal Neuralgia, I understand that it's very painful. I hope your episodes are infrequent and short-lasting.
Take care,
Jake