I am sorry to hear that.
Honestly though, allergy testing for foods is highly questionable.
You could've gotten false positives.
The only way to really know is to do an elimination diet.
If you want to go by that list, you could either feed a fish based food or talk to a nutritionist and homecook with possibly egg or cottage cheese.
Prescription diets aren't usually great but if you wanted to go that way, you could try an allergy formula.
