It looks like your account was caught by one of the automated systems we have in place to keep Twitter spam-free. Twitter provides an official feature for reposting other users' tweets, called Retweet. This feature allows you to quickly share Tweets you like, and ensures that the original post will be properly attributed to its author. The original author of the tweet will see all the retweets collected in their Retweet tab, and will have less clutter in their Mentions tab. Here's more information on this feature:
Your account is now unsuspended. We recommend you review the help page above and use the official retweet feature if you'd like to repeatedly retweet other users. Please note that it may take an hour or so for your follower and following numbers to return to normal.