Weird Numbness in arm???

Ella

So i gave birth on the 10th and afterwards while being taken to the bathroom by nurses ender up collapsing and passing out. Woke up with the paet wbove my armpit. Basically my arm but the buttom skin numb. I mentioned it to the nurses when i woke up. They said that they had to out work into holding me up when i passed out. Either way i stood in the hospital two days and it didn't leave. Before getting discharged i explained jr to the doctor. She found it odd but asked if i could move my fingers and hand and i let her know i could, then said she didnt see any bruises either. Anyways been home two days now and its still numb and so is the other now and some parts of my armpit and shoulder. Feels slightly cranky once in awhile. What is it? I originally thought maybe it was all the muscles I was using during labor since basically everything still hurts me but the numbness spread to multiple places now so idk