Ask has limits in place for all users. This is to prevent users from spamming up the site, which unfortunately also affects the users who are contributing positively. We know it's frustrating, but can you imagine how much more frustrating it would be to see spam all over the service?
While you are waiting, you can still ask questions give answers.
You are more than welcome to contact Customer Service for additional assistance if you have questions about the length of time you are limited.