I found that after arriving home (3 days hosp., 10 in rehab), just going down to the backyard and picking herbs made me feel human again--even if it was the only trip out of the house I took that day. I took taxis when I was not yet driving (or could not get a friend or hubby to drive me); it wasn't difficult to find cabbies who'd let me ride up front for the legroom. I'm lucky to live in a detached house with yard in an urban neighborhood, getting the best of both worlds. A gentle stroll around the block to the natural-foods store and the frozen-custard/patisserie/espresso bar on the corner helped me feel part of the world. I had already transitioned from wheeled walker to crutches to crutch to cane in rehab, and once home from cane to hiking stick (which I carry now and use only if I encounter uneven terrain or stairs sans railing...and to avoid angry stares should someone observe me taking advantage of my HC parking placard in parking lots or at meters). But one thing I found immensely helpful back in 1996 after tibial plateau surgery when non-weightbearing for 8 weeks was a walker with a seat. I had attached a denim sling seat to a plain, "hippity-hop" non-wheeled walker so I could sit to prepare food or make a cappuccino; nowadays, most pharmacies many discount stores carry wheeled "rollators" with sturdy seats and storage baskets. They're extremely useful if you still need the support of a walker; and you can even bring them aboard a city bus or rapid transit train. If you get tired on your strolls, you can just sit for awhile till your energy returns or discomfort abates.
And as to pallor, a BB cream works wonders. Not quite a foundation but more than a tinted moisturizer, it does even out skin tone & texture and provide UV protection (you CAN get sunburned through a window). For my fair skin, I like Olay Total Effects Tone Corrector Fair/Light or Maybelline BB Cream Light (with its SPF 30 it gives better sun protection than most liquid foundations or daytime moisturizers). L'Oreal Youth Code BB Light (not their original BB Cream in Fair, which is ghostly pale and has no sunscreen) and Garnier BB Light/Medium are a bit thicker and more pigmented, and are put to better use as foundations. In the UK, Rimmel or Boots No.7 may have their own range. (Think I saw some on layover at Heathrow). Even just a bit of BB cream, a couple of strokes of an eyebrow pencil to fill in missing hairs, a coat of mascara and a sweep of lip-balm "stain" brings remarks that "gee, you look healthier today."
Just to put things in perspective, I still had "brain fog" at 8 weeks (which made me less than valuable as a union-local exec bd. member, required a "cheat sheet" for running order and keys/what fret to capo my guitar at gigs, and caused me to associate co-counsel on a real estate closing). And I still get occasional sharp twinges as more neural pathways reawaken. I find that if I don't periodically elevate, I get severe ankle edema by the end of the day. At this point, my as-yet "unrepaired" left knee is hurting far more (except for startup stiffiness) than my TKR'ed right one, so as soon as my OS knows his schedule for late Dec./early Jan. we'll set the date for my LTKR.
So know recovery is an ongoing process; and not only is everyone's knee story different, but two people may have disparate progress in different aspects of recovery (one may have better flexion but longer-lasting pain, the other less ROM but less or different pain). To paraphrase the Supremes (okay, Holland-Dozier-Holland), "you can't hurry knees."