Chronic headaches since brow lift 5 years ago, could it be nerve damage?

Hello, I have never suffered from headaches before getting my brow lift. It has been 5 years and I have had chronic frontal tension type headaches ever since 24/7. Has anyone ever seen this happen. My doctor says it's not from surgery, but it is so coincidental, it's hard to not think there may have been some kind of nerve damage during surgery or in the healing stage?