Feeling bad about feeling annoyed at Mother-in-law

My mother-in-law is very helpful, she comes over once or twice a week to help with the baby. I don't want to come off as ungrateful but we have a photo album in the cloud of all the photos we take of the baby shared with a bunch of family members so they can see them and my mother-in-law proceeds to share a bunch of them on Facebook every so often. I'm not sure why I have a problem with this other than she hasn't asked. There are other little things she does that annoy me, maybe they are all just building up?

Anyone else feel bad about being annoyed at your mother-in-law?