I had a post chemo RPLND done 3 weeks ago to treat Stage II- non-sem cancer. I spent a week in the hospital and have been home for 2 weeks. I haven't started driving yet, but I feel like I could drive. Appetite hasn't fully returned yet but I am slowly regaining my strength back.
I personally don't know why your markers would be rising, but there are a lot more people on this site who know more about the subject than me.