S.E.
Hi.
My name is S. and I'm a single parent to a 5-year-old and a 3-year-old. My first born was always a little underweight and my 2nd one is a bruiser! Here's my experience/advice:
1. Everything is going to be fine. Take a deep breath and know that you have all you need to take care of your son. You are a good mother.
2. The pediatritian is not going to punish you or think you're a bad mother because your son is a "little on the skinny side."
3. You are not alone in this problem!!!
Okay, my friend has a 1 1/2 year old and he's been loosing weight. She was worried but her doctor looked at her and her son who was almost climbing the walls and said "well, I can see that he's just very active and not very interested in stopping to eat." Could that be your son?
Toddlers don't like to stop to eat. They are very curioius. It is GOOD wisdom to have snack set out. I used to put snacks in a cupcake pan and leave it on the coffee table. I had healthy things (no sugar, no chips) like cut up grapes, apples, cucumbers, pretzles, goldfish, peanut butter crackers, etc. and they just graze. It's amazing how many calories they consume when you do that.
Toddlers won't likely sit down to eat even if they are denied food in between meals. We can't put adult demands on a toddler. It just doesn't work. We cannot expect a toddler to eat like an adult!!!
Formula and a bottle and juice will fill up your son and he won't be hungry. ASK YOUR DOCTORE BEFORE YOU FOLLOW THIS ADVICE. I suggest you stop the formula. Only give your son water except for some diluted *(1/2 juice, 1/2 water) juice once a day at breakfast and plain full fat milk at dinner. Have snacks available all during the day. Continue to sit him in his feeding chair for three meals a day and make meal time a fun bonding time with your son. Sing while you feed him, talk about the food, discuss how it feels, smells, tastes, etc. I used to "feed" my girls about every 2 hours AND I had the snack set out at all times. Breakfast by 8, snack by 10, lunch at noon, snack after nap, snack before dinner, dinner, bath and bed. This is the way we should eat as adults too! All the "experts" in diet/fitness say to have many small meals instead of a couple of really big ones.
You have the power to change your perception of this "problem." Just tackle it a little differently and relax. Your son knows when you're all keyed up and it may make him anxious too.
Good luck!!!