The England winger has often been linked with a move away from Teesside, with Tottenham mooted as a potential destination.
But Downing has shrugged off any doubts about his situation, confirming he is happy to stay with Boro to Sky Sports.
"You just get used to it, obviously, speculation is part and parcel of football.
"Teams are trying to get players, it's a big time of year to get players in and get teams settled.
"I've always said I'm happy and, if you're happy, why move?"