SOMEBODY IS APPARENTLY STEALING MY VOTES. PLEASE HELP?

I noticed from steemdb.com that someone has been taking my votes without my knowledge. Is that not very cruel? We are limited to only 10 full votes at 100% voting power instead of 40. I just noticed it. Please I am calling on steem to help me ASAP. This is very unfair. The fellow doing this is one who has a very high reputation in steemit, but I don't care. He is using up all my votes without my knowledge and permission and I don't like that. It is not that the fellow upvotes my content. Why should my votes be taken without my permission?

Please, you don't have to upvote this, just tell me how to deal with the issue if you have any ideas. I would remain grateful as always. Thank you in anticipation.