After a whirlwind month, Khalil Mack needed the chance to exhale.

What a September it had been. Traded to the Bears on the first day of the month, Mack gave his new team and his new city an exhilarating four-week production surge. Five sacks. An interception returned for a touchdown. NFC Defensive Player of the Month honors. A big hand in lifting the Bears to the top of the NFC North standings.

Yet with so much going on away from football — a transition to Chicago, a new home purchase, the need to get his personal life settled — Mack welcomed the Bears’ Week 5 open date as much as any player.

“It was real good, man,” Mack said Wednesday at Halas Hall. “That’s a good feeling, knowing that I can finally get everything situated and that I had the time to get things situated. It was cool.”

So, some furniture shopping and the like?

“Yeah, something like that, man,” Mack said with a wide grin. “Had to stop at Target. Home Goods. Did a little shopping here and there.”

Still, with those jaunts into the public, Mack also is starting to gain a better understanding of just how big of a deal he is as the star player in a major market of a football-crazed city that suddenly is giddy over the Bears’ surprising resurgence. Remember, Mack played his college ball at Buffalo and spent his first four NFL seasons with the Raiders.

Indeed, this is a different animal.

“I didn’t know Chicago was so aggressive,” Mack said. “It’s real aggressive. Everybody kind of recognizes you. But it’s a good feeling.”

Mack acknowledged he could offer “a lot of different examples” of how his fame in a new city brought out an aggressive side in excited fans. But he declined to divulge specifics.

“Not right now,” he said with a smile. “It’s just everywhere. That’s the difference everywhere. No matter where I’m at. Home Goods, it could be a mother of two and she’ll be a fan and it’s like random as hell to me.”

Ace up his sleeve: Before quarterback Mitch Trubisky torched the Buccaneers for 354 passing yards and six touchdown passes on Sept. 30, he made a decision to slide a sleeve onto his right forearm. It was the first time in Trubisky’s NFL career he had gone with that accessory and he finally explained why Wednesday.

“I had a little cut on my arm a few weeks ago,” Trubisky said. “And then it reopened in Arizona on the first drive and was just gushing everywhere. I didn’t want that to happen (again).”

With the cut covered, Trubisky had a career day in a 48-10 blowout of the Bucs and since has made the executive decision to keep the sleeve on.

“Some superstition,” Trubisky said. “Call it what you want. I also got a lot of threats that I have to wear it (again) so ... ”

Injury report: Receiver Anthony Miller (left shoulder) fully participated in Wednesday’s practice, meaning he likely will play Sunday. Cornerback Prince Amukamara (hamstring) was limited, as was left guard Eric Kush (neck). Only cornerback Marcus Cooper (hamstring) sat out.

The Dolphins are more banged up. Star defensive end Cameron Wake (knee) missed practice after sitting out last Sunday’s game against the Bengals. Starting cornerback Bobby McCain (knee) sat out, as did safety T.J. McDonald (foot). Left tackle Laremy Tunsil (concussion) was limited.

Rich Campbell of the Chicago Tribune contributed.

dwiederer@chicagotribune.com

Twitter @danwiederer