weaning – what to avoid

Hello
I have just started weaning 5,5 month old iwth silent reflux.

She is on neocate lcp and gaviscon. We will be starting on losec from Monday.

She has multiple protein intolerance. When breastfed, she reacted to milk, soya and egg products.

I have started with baby rice. Today she has tried pear and I swear she is very uneasy after it. She loved it but screamed a lot about hour afterwards.

Is there any foods I shold be avoiding when weaning? Normally we start with pear, apple, carrot, sweet potato, swede, parsnip, etc.

i would appreciate quick advice, as not sure whether to continue with pear.
Thanks