Haven't posted here in a while but I'm here for advice

the SV has been doing it's rounds at my work (I work in a library so it's enclosed and I use the same stuff as everyone else) and so far haven't been panicking about it.
but for the past few hours I've felt N* and my stomach is making lots of noises! I wish I could tell if this is real or just anxiety?! I haven't had a SV since I was very young so in a way it wouldn't surprise me if I caught this keep my hands clean while I'm there but I remember at the weekend I used my phone then ate without thinking! Since I take my phone to work too...

Really fed up of the phobia!