bank feeds

I have been bookkeeping for a small business for 8 months. They agreed to link the bank feed but have connected it from the start date in April. I only needed it from December. As all the transactions were manually added prior to December the newly added Bank feed For Review records have all found a Match.

So should I Exclude all these "duplicate" records or can I add them. My thoughts are that if I add them then it is effectively double-counting and will throw all the figures out. But if it doesn't mean they're double-counted is it