For context, I'm 21F and I've been moved out of my parents house for 2+ years now. I rent an apartment a while away from their house, which they own, and is way bigger than my place. This was helpful when I realised after moving into my new place, that I barely had any space for all my stuff. When speaking to my mom about this, she said I could use the house as a storage space, which was convenient as I could come by whenever I needed so i agreed. Things started going wrong last Christmas. I came by to get some decorations I had stored there to use at my apartment, only to find out my mom had sold them on Vinted. She said, very cheerfully, that she chose it because she didn't think it had any significance to me and that I wouldn't have minded if it was gone. I WAS bothered, but quickly let it go. A few months later, I would stop by for some clothes I had stashed to find them missing again. This happened multiple times. Everytime I asked, she said she had either sold it on vinted, or that she had let a friend borrow it. After a while of this, I grew very agitated. When it happened the last time regarding some very expensive shoes, I blew up. I shouted at her for taking my belongings and selling them without my consent while she stood and cried. Her response was that I had kept them in the house for so long that she felt it couldn't have been important to me, and that had she known, she wouldnt have done it. She also said that it clearly didn't matter enough, as I chose to keep it in my parents house, which was HER property and so hers to deal with. In my rage, I didn't realise that she was patting around for her inhaler as my mother has severe asthma and she started coughing terribly. To this, I slammed my hand on the wall in anger and left only before telling my dad that she needed an inhaler. Now, my dad, brother, some relatives, and even a few friends are saying I overreacted, and that I'm an apathetic 'materialist' and care more about clothes than my mom’s health and well being. I feel like I had every right to be angry, but now I’m questioning myself. So, AITA?