Hey, Jennersue, my story is pretty similar. I had allergies and mild stomach problems for a long time, then two years ago, I suddenly developed asthma, and my stomach got a lot worse.
Prilosec only helped a little. I was diagnosed with GERD and eventually borderline gastroparesis. I tried medicines for the gastroparesis, but they didn't help much. Finally, last December I had surgery called Nissen Fundoplication. It helped my stomach quite a bit, and since then my asthma has hardly bothered me at all, even with the terrible pollen this spring!
Of course, that surgery isn't something you want to rush into. First you should:
1) Try dietary changes and lifestyle measures to bring the reflux back under control. This includes small meals, not eating anything for 2 hours before bed, and propping up the head of your bed 6 inches. In general, try to avoid lying down or bending over when your stomach is full.
Also, alcohol, coffee, spicy and greasy foods are triggers, and (since you have gastroparesis as well as reflux) you might find you tolerate cooked veggies better than raw ones.
2) Get yourself on a daily inhaled steroid (asthma controller medicine) and a daily antihistamine. Also, try to reduce your exposure to allergens
3) Consider allergy shots for your allergies. It can take up to a year to start working, but it does make a huge difference in the end.
4) Try motility aids for your gastroparesis, including reglan, domperidone and erythromycin.
5) If none of that works, then consider surgery. First have a test called pH monitoring to confirm that you really do have reflux, then find the best laparoscopic stomach surgeon you can.