Dear Denise,
I'm kind of late into this discussion here, but I'd really encourage you to explain your situation to your priest, and see if she would be open to the church getting gluten-free wafers and keeping some of the wine uncontaminated for you (and others who might have the same needs), and having your provide GF wafers yourself, if the church doesn't want to pay for special ones.
I'm a Baptist, so we don't have the same issues of blessing the communion elements as high churches do, but my pastor immediately said I could bring my own wafer. We have the cup in small individual cups, so no-one dips bread into it.
Not taking communion feels weird, I know. I skipped it at my son's church at Christmas, because I hadn't checked ahead of time on bringing my own, and I really missed being able to join in.
That said, I'm so glad that you were finally able to go to church after such a long absence. Definitely a big

event.
Love,
Martha