Definately YES!
You worked bloody hard to get it and should be proud of letting other people know that you have the commitment which is required to reach that level of achievement.
Ignore "recruiters/agency" they haven't a clue and are generally only used by employers who dont know who they really want for the job, or, more to the point, don't know how to run their own business so they pay someone else 30% of the salary to do it for them.