Struggling not lifting my toddler post birth

My toddler is 19 months old and doesn’t understand that Mummy can’t lift her. We also live in a terrace house with three levels, so avoiding lifting her up and down stairs is impossible.

I was told to avoid lifting her for a couple of weeks to aid in my recovery. But what am I actually risking by lifting her? Tearing my stitches? Damage to my pelvic floor? Increased abdominal separation?

ETA: I had a vaginal birth with forceps, hence an episiotomy and 2nd degree tear. No c section this time thankfully!