Nearing 8 yoe and still mid level. What are the consequences?

I still have not made it to senior level and am very concerned this will affect my career. Especially given this market.

I worry that I am judged as less competent amongst my peers and will be passed over for other candidates if I try finding another job. Even if I can pass the technical and system design portions.

Ideally I would like to search for senior positions this year. What has your experience been interviewing candidates that don't hit senior with so many years of experience?