2004 Honda Pilot makes a noise at low speed

What is your question?

My 2004 Honda Pilot does the "woosh" in 4th. gear at low rpm around 40 MPH. I know it's not something loose underneath because the RPM goes up as the engine revs up. Just had the tran fluid changed at 99,000 and now I have 117,000. Never noticed it before the change, maybe I should of left well enough alone. Going to get the fluid changed to see if it makes a difference. Hoping there is a recall.

What makes this problem better or worse?

Low rpm around 40 mph.

How long has your 2004 Honda Pilot had this problem?

not sure, seems to be getting worse