You had just left the hospital after some surgery and getting the okay, for background context you had gotten kidnapped and when Sherlock got there one of the men holding you captive stabbed your abdomen with a very long dagger and left. (Of course he was caught by Sherlock and police men). So you were on very strict bed rest.

well Sherlock had been out on a case and you were hungry so you figured making a quick omelette won’t hurt, so here you were in the kitchen cooking casually, though you moved around with a limp to ease the pain on your side. You flipped the omelette watching it cook before hearing the front door open, there was a few steps before there was a pause

Sherlock,”what are you doing out of bed?” his tone concerned and sharp as he went to you