Do I have separation anxiety ?

School starts next week I have 3 kids my oldest is 8 and she’s the only one in school. I’m nervous she’s going back. I have anxiety just thinking about it! I hear my sister say she’s so ready for her kiddos to be back in school and I try to relate but I can’t. I like having my kids with me they drive me crazy but I still want them home. I wonder if it’s bc I’m a stay at home mom??? Working moms is it just me being a sahm that I have these feelings.or stay at home moms can you relate to me?? I just worry kids will be mean or she’ll struggle with understanding everything, or that she won’t speak up. She’s very smart, kind, it’s just me with all the doubts. She has no idea what I feel I don’t want to make her nervous bc she’s definitely excited. Any suggestions help so I can cope?