2015 Honda Odyssey engine noise?
 

Hi. We had our 2015 Honda Odyssey serviced a few weeks ago (oil change and tire rotation) and ever since then we feel that the engine is making a weird noise. It's sort of a higher pitched whirring noise (I don't know how to describe it.) I've attached a video of the engine noise while driving. Around 7 seconds you can start to hear the noise if you listen closely. We aren't sure if this is normal or not. For all we know it may have always sounded like this, and we just started noticing. Thanks for any advice.