I spent Friday resting after a pretty strenuous PT session with some new exercises that weren't impossible, just different (strengthening) from my former sessions, which focused on flexion. I was advised to rest for the remainder of the day and only take what has become an almost daily ritual of walking down the road and back, a quarter mile stroll

. It actually looks more like a crawl, I guess, to my neighbors, who are probably wondering why this formerly active individual is now limping along.
I woke up on Saturday feeling knee stiffness, and although on Friday my PT thought my bend when walking had improved (he's had me on the treadmill, both forward and backward at a gentle speed for the past two sessions, just to practice walking), I was once again lurching around from room to room on Saturday morning. I rode my exercise bike (which I've only been able to make a full revolution with the pedals on in the past few days-formerly sitting on it and "rocking" the pedals back and forth), but the stiffness stayed with me.
My son's girlfriend came over, and we went strawberry picking. I brought a hiking pole and picked berries from a standing position. There's no way I could figure out how to sit down on the ground between the rows. We were probably out in the fields for a little over an hour. My knee stiffness did not abate and was probably more pronounced. After a one hour lunch break (I iced the whole time), we made 2 batches of jam. All together, between picking and jam making, I was on my feet for at least 4 hours during Saturday.
It doesn't seem like a lot, but apparently it was. My knee was throbbing by 5 pm, and I spent the rest of the night with my knee elevated, ice on it until I fell asleep. I slept with my knee elevated, as I know the fluid will drain better that way. I woke up feeling much better and will soon attempt my PT's new exercise routine. It includes squats, extensions, some gentle stepping up on a four inch step. His suggestion is to do the exercises once a day, except for fpglute stretches, and take two walks.
I am forty days post op today and feel impatient, more with my flexion, which was 102 on Friday (with my exertion) and 110 (with my therapist's help), than with my progress. This TLKR is very different from my TRKR, and I worry about not reaching the same degree of flexion as I have with my right knee (127).
As I looked back at my BS posts from two + years ago, it seemed like I was much further along in my recovery. I wonder how age factors into recovery? Is my overall stamina not as strong as it was 2 1/2 years ago? Might the damage to my left knee have been more significant, making recovery less productive? Could the remaining pin in my left femur from ACL reconstruction in 2007 (the 2 pins in the tibia were removed during my TLKR surgery) be compromising my recovery now? I thought I'd be on my road bike by now (I recorded on BS that at ten weeks I was riding 6+ miles!) I thought my knee would be stronger by now. I thought many things that are just not there yet.

I worry that I might be left with a minimally useful leg, which would send me over the edge. I'm heading to exercise now and hope some one can offer some words of encouragement for what is otherwise a gorgeous day on this side of the pond.
Thank you for your ongoing support and help.