I've been lurking here a bit, but I'm feeling ready to join
My son is 2.5 and we're expecting a sensory processing disorder diagnosis soon. He's on the "seeker" side of things. He's had slow weight gain, and anemia and low IgA that raised questions of celiac (he's not, it was ruled out via endoscopy, but he does have a small ulcer). We've also dealt with a lot of pickiness and texture aversions as an infant. He's overcome a lot of the texture issues now, and in fact loves to fingerpaint and play in sand. He's also becoming very interested in trying and eating new foods.
Because of his slow weight gain, medical issue, pickiness, and behavioral issues surrounding meals (in constant motion) we were referred to a multidisciplinary feeding team assessment at our children's hospital. Our meal was observed by an OT, SLP, dietician, GI nurse practitioner, and psychologist. We also completed a comprehensive sensory processing questionaire.
We're waiting for the full report, but the OT immediately noticed sensory differences surrounding proprioception (large bites, and fell out of his chair) and seeking behaviors. Basically the kid would move, climb, wrestle, roll in toys, etc. all day long if you let him and he'll do all of this instead of sitting to eat.
We will be starting individual OT once approved by insurance with a plan to transition to group feeding therapy in the summer. He's a bright, happy, and social kid who has managed to function well, especially in preschool, despite the differences. We're looking forward to learning ways to meet his sensory needs and make meal times happier in our house