Twitter has spam systems that review account behavior and automatically suspend users who appear to be engaging in spam behavior. It looks like a disproportionately large number of users, including ones you followed or @replied, have chosen to either block your account or report it as spam.
Your account is now unsuspended. Please make sure you review the following help pages:
• The Twitter Rules: https://support.twitter.com/articles/18311-the-twitter-rules
• Following Limits and Best Practices: https://support.twitter.com/articles/68916-following-rules-and-best-practices
• Automation Rules and Best Practices: https://support.twitter.com/articles/76915-automation-rules-and-best-practices
Please note that It may take an hour or so for your follower and following numbers to return to normal. Further violations may result in permanent suspension.