I'm sorry to hear about your wrist and shoulder pain - no advice other than listen to your body, we're not competing with anyone here!
Well, my experience is coming from a very different fitness journey than yours at the moment, but I've taken it down a notch with kb poundage. I have plenty of heavier, more traditional kb workouts, but Brook Benton's Kettlebell Butts & Guts (kind of considered a "kb lite" workout around here I guess) has been a staple in my routine the past 6 months. I'm pregnant and it's been the only low impact cardio/strength workout I've been able to do without modifying a whole lot. Regularly, a 20 lb kb was my go to for this workout, but as my body changes I've dropped to 15 lbs (and even 10 lbs when I feel like it).
For me it's been the consistency and not the poundage (2-4 times a week with this dang workout, I'm getting sick of it, but like I said, it's one of the few workouts I can still do!). I haven't lost strength or muscle definition...upper body is still looking good and honestly my butt and legs probably look better than before my pregnancy just because I've been so consistent with this kb workout.