Am I banned from twitter search?

Hello, I have recently noticed that none of my updates appear in twitter search (search.twitter.com) - even if I type in the exact update name or even my own name... Like if I had been banned from twitter search - but my account is up and running with no problems, no warnings, nothing like that - I have a blog that auto-syndicates content and then auto-twits it to my twitter page with a plugin called tweetable - that makes as much 100-200 updates per day with over 16k overall updates in my twitter now - many users used to find my updates in the twitter search and follow me from there... I clearly state in my twitter that all are syndicated posts - and I give credit tooriginal sources, and I have more and more people following me liking my updates - I read twitters terms and restrictions etc... and am trying to not to break any, I even sent twitter support a request in the help section like a month ago about my account - that they take a look at it and tell me if they think it still violates anything since I wanted to go by the rules and eliminate any violation at an early stage - yet there was no reply whatsoever and the request is still open - and all of a sudden around 2-3 weeks ago my updates disappeared from the twitter search as I said earlier, without any warning and my account is ok, no suspension warnings, nothing. What is going on? - Any thoughts on that?

My twitter page: twitter.com/delicacy

Thank you in advance!