Thanks for getting back to this thread, @Laura1980. Allow me to chime in and clarify things for you.

Before that, are you seeing duplicate transactions? I appreciate any extra information you can give, and it will help us isolate the issue and provide the best solution.

The statement may differ from the transactions generated in QuickBooks when double entries occur within your books. This happens when you add bank transactions instead of matching them.

What we need to do is to compare your bank statement and QuickBooks records. Then, undo those transactions that shows as duplicate and match them accordingly. 

For more information, you can review this link to help review downloaded bank and credit card transactions and put them in the correct accounts: Categorize and match online bank transactions in QuickBooks Online.

Once everything is settled, start reconciling your accounts so they always match your bank and credit card statements.

Keep me posted if you have other questions about your QuickBooks Checking transactions. I'm always around to help. Stay safe!