Did I screw up?

Hi all! I’m a 36 y/o man, recently met a 26 y/o girl a month ago. Although we have a 10 year age gap, we really connected over the phone. We were supposed to meet but with a bit of nerves & cold feet I told her a few hours before we’re supposed to meet I wasn’t feeling well but I offered to meet in couple days. Her response was ‘I’m sorry to hear that. Hope you feel better soon.” I responded with a thanks & sorry to postpone in which she just said “feel better soon.” I responded the following day saying I felt better and enjoy her day & I haven’t heard from her. She is now distant. I get that saying I wasn’t feeling well when we had a date sounds disingenuous or an excuse to not go on the date so now I don’t know if she felt I lied about that & is distancing herself. Did I screw this up?

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PS when I had mentioned an alternate date she didn’t acknowledge it, she just responded by saying she hopes I feel better soon and that’s all she said.
Did I screw up?
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