Aw, mahirap yan talaga! At 22 months, ang gagging ay normal pa, pero if it's happening every time he eats, best to check with his pedia kasi pwede ring may texture preference issue or something he needs help with, may kaibigan ako na ganyan, turns out ang baby niya need lang ng smaller, softer pieces at mas mabagal ang pagkain. In the meantime, try offering bite-sized foods and let him lead the pace, sometimes pagod lang din sila or overwhelmed sa dami. Sending you strength, mama, this phase will pass!