Extreme guilt

I was arguing with my mom about something stupid and my mom had a stroke. She had a mini stroke before but this was a big one. She’s in the hospital now but she’s bleeding in her brain. She isn’t breathing on her own and the doctors don’t think there’s much hope. I can’t stop crying. And I can’t stop feeling guilty because we were arguing. She hadn’t been taking her stroke medicine so something was going to give her a stroke at some point. I just feel so responsible because we were arguing. I’m distraught. I am just praying for some sort of miracle. I feel so responsible and I just wish it was me instead of her.