I can only go by our experience several years ago; it was not an FHA loan. The person in charge of our loan with the bank said at the time we applied to not move any large sums of money around between the approval and purchase time, as it raises red flags that the funds there used for the approval may not all be your own. I gathered that the suspicion is that you borrowed money to put forward a better image just to get approved. Even when we were one day before paying the down and I wanted to move most of one savings account into checking so that it would be in one account, the agent and loan officer frantically said not to do it. I had to wait and have the bank merge the funds as they were making out the check.
Since you pulled out the down payment funds already, it may appear that you no longer have sufficient money for the home purchase. Maybe that is holding up your approval. But I can't say for certain that is the reason, of course.

It's not even been 30 days. Typically a few days prior to the actual closing, the underwriter will pull your credit again to make sure there have been no changes, you still have a job, etc.

Don't expect anything until a week before closing, if that.

A lot of the times the underwriter does not get to the file until a day or two before the closing date. And they will run your credit right up to closing pretty much.

Our lender had us get the money out, we had to show teller stamped statements showing the money was in there before the withdrawal. We know not to go buy things, or change jobs. I tend to over think and worry! We just don't know if we should start packing or if we wait. I want to start thinking of decorating, but dont know what to do! I never thought this would be so stressful!