Parent with emetophobia

Hi. I'm new to this reddit, looking to make friends and have a support group. I'm a mother of one lovely four year old girl who I love with my life. She has autism and so do I. So I guess what I'm looking for reassurance on is she finally got the dreaded tummy bug in December. I got it about a month later or we think so. Thing is, I stay at home and rarely have contact with others so we think it may have been food poisoning or too many drinks. I also suffer with gerd so panic attacks happen when my stomach hurts.

But the problem is since these two events I spend every night jumping at every noise thinking it might happen again. I do my share of research and I am aware kiddos usually and I emphasize usually only get stomach bugs once or twice each year. My every day is spent worrying myself into exhausted state that one of us is going to get it. I don't know why she and I getting sick made this emetophobia worse but it did. I don't know how to cope with it. I take hydroxyzine when it gets bad and I also have some prochlorperazine handy incase I do get sick though it doesn't reassure me much. What can I do to get through this and not be as scared every day? Thank you for taking the time to read this.