My MIL is 95 and lives in an assisted living facility. She has three children (my husband, IL and BIL). I am the primary helper as two of her children live out of state and my husband is not close with his mother. I have a difficult time helping her. She has never been kind or loving toward me but sees me as someone to ask for help. She gets frustrated if she’s not helped quickly and will often call many times to make sure I am doing what she asked. I’m a full time teacher, grad student and parent of two children still in school. I am burned out but feel guilty if I don’t jump when she calls. Either way I’m miserable. Is it okay to say “no” sometimes when what she’s asking is not life threatening (for instance, she currently has fuzziness in her ear and the nurse at her facility checked her and requested meds from her doctor but she wanted me to take her to the clinic)? Thanks for any info.