Need help!

Sudeshna

My 10 month old has started getting up at night ( sometimes 12, sometimes 1 or 2) crying to poop since last Friday. Once he wakes, he does not go back to sleep for next 2 hours, which is making his and our nights miserable. I am not being able to figure out what is making him potty all night long. Before he used to poop once a day, sometimes twice. For one week he is pooping almost four times a day, mostly the texture is okay. We introduced chicken last week and fish this week. Could these cause him poop more often? If anyone has been through this situation please comment.