One thing, did you check with the vet about your snake not getting the full last dose of antibiotic? I'm not saying oral antibiotics are the best choice, but you
did say that it seems to have worked: the issue is that when antibiotics are not used as prescribed (for the full course) you can end up with resistant pathogens.
Do ask your vet if it's OK that your snake did not get the full last dose.

Antibiotics do have the bad 'side effect' of destroying both "good & bad germs"...including the beneficial gut bacteria that helps your snake digest food. It's
normal that a course of oral antibiotics would upset her stomach...if she did eat right now, she might regurgitate it anyway. There are probiotics made for use
in reptiles (such as BeneBac) that you should probably add to her food to help her digestion recover. (check with your vet?)

Snakes don't like getting medicated & they don't understand you're trying to help, so her behavior is normal, all things considered. In her mind, you have been
attacking her, & she is defending herself. As she is only going to get larger & stronger, you should have a trusted friend with you to handle her, especially for
any such procedures in the future...please be safety conscious. Hopefully she'll calm down in time?

It might help to insulate most of the glass tank you keep her in, to keep the temperatures more stable. (various materials like foam board can be used to insulate)
I hope she makes a good recovery, and also calms down.