My 12.5 month old won’t eat solids!

She only wants to nurse. I can’t keep up with my supply so I have to give her formula to supplement. She barely ate much before, but since she had tubes placed a few weeks ago, all she wants is milk. She was always very picky, made a face when she would touch certain foods, gagged or vomited with some textures and now it’s like she just gave up! This seems like a sensory thing I’m thinking. I’m going to bring it up with her pediatrician at her next appointment soon, but does anyone have any tips or insight? It’s so frustrating and I worry so much about her.