My 8mo has been on solids since 5.5 mo. We did some purees, but from the beginning he wanted to self-feed so we've been doing BLW. We went through some constipation issues where I backed off all foods and went to the "p" foods. Problem was he only really wanted to eat pears which resulted in him eating a lot of pears and now all he really wants is pears. Anything else gets overlooked. In the last two days he has started pushing things he doesn't want on the floor. How should I respond?