Hi hun my DD is a silent refluxer too, hugs for that alone! Starting solids did eventually really help things settle down with her, but at first it was a lot of trial and error around what she could/couldn't tolerate. Baby rice was a huge no no, it really upset her system and caused horrible constipation and painful NW for her. Most fruit and veggies were fine for her, she loved mashed banana also sweet potato too, oh and pear puree. We obviously avoided things know for being acidic... such as tomatoes, citrus fruits, pineapple, etc, we didn't trial these until 12 months. She still can't have pineapple now bless her. Each LO is different so obviously your DS might be fine with these things and not with others. A lot of people say apples can be acidic but my DD was fine with them. Good luck.