Post Surgery

I had surgery on Wednesday morning, and  I am not able to pick up my daughter while recovering, so that leaves my mother to take care of her.  She's started getting aggravated with everything and complaining that I'm not moving fast enough to get the baby a bottle, or wash her pacifier.  She brought me home some lunch today, and there was tartar sauce in the bag with my food, she had bought herself food for tonight before she went to work, and i wasn't aware she hadn't set any sauce aside for herself, so i threw away the bag along with the sauce.  She found out that I threw them away and she burst into tears.  She says that she never gets anything and that I take her for granted, whenever I'm trying to recover from SURGERY!  I just don't know why she is acting like this.  I understand that she is doing a lot for me and I'm thankful, but there isn't much that I can do at the moment.