I let my friend drink from my my water bottle because I thought I had allergies and not a cold. Now she's ill too.
Are you feeling alright at this point?
I am, but I lost my appetite completely.
I know you didn't know if you're actually sick or not, that's understandable. In the future I would not recommend taking the chance.
I didn't think it would go further.
Like I said, I understand where you're coming from. I'd recommend apologizing to your friend and using this as a learning experience.