How likely am I to get a virus from my friend if I spent the whole day with her?

I spent all of yesterday with one of my good friends. She was in my car, touched my phone, and held some of my stuff and my drink while I was trying on clothes. This morning she told me she threw up, had a sore throat, and had the chills. Now I'm totally freaking out, because she was fine yesterday but my boyfriend (whom I haven't seen in months and can only stay for this weekend) is flying to come visit me tomorrow. We have a lot planned, and if I get sick, I'll ruin both of our times. I haven't had the stomach flu in at least 5/6 years (and before that another 6) and I rarely throw up but I'm so freaked out now. I'm kinda obsessive about germs so I'm clean but should I worry?!? How likely am I to get this now that I hung out with her all day? We didn't share food or drink but she touched so many of my belongings that I then touched afterward. I don't even know if it's a virus or something bad she ate but I'm still anxious.