Should I feel guilty?

My mom moved to be close to me & my kids. Which is great. I truly love having her around. But she doesn’t have a support system here (aside from me & my kids) & doesn’t want one. No friends, she doesn’t work, no other family close by. These are her choices, she could work or get out & meet people if she wanted to. As a result I’m her only companion & socialization. My spouse & I have had a really hard month. Everyone has been either sick or injured. And we’re all just starting to get better. But as a result I haven’t seen my mom in a week bc it’s been intense. When we go a couple days without seeing her I feel immense guilt bc I know she’s spent all of those days alone. And I don’t love inviting people over when I don’t feel well. So it feels like I have to choose between my comfort or hers. My question is - should I feel guilty when we don’t see her for a few days? Or should I be making more of an effort? During our “normal” routine we see her on average about three times a week.