2 Yr Old ALWAYS Crying! Won't Eat.

First off, my kids both started eating very little right around their second birthday. I just keep snacks that they could grab throughout the day. They can get to the yogurts in the fridge and fruit on the table. Then from time to time I would put out a few cheese stick and crackers. My ped said that as long as they were having healthy bowel movements, than they were eating more that I knew. Also remember their stomachs are only the size of their fist. So they can't fit that much in there at one sitting and need to snack more than we do as adults to get the proper amount of nutrition.
Now the behavior also sounds familiar. It is something that has cropped up from time to time with my oldest. When she starts the crying because she doesn't want something, simply take it away and walk away from her. Don't give her what she wants, just walk away and leave her there. If she wants something, tell her you can't understand her when she cries and you really wish you could help her, but she will have to talk in a normal voice so you can understand it. If she continues to cry, just say, "I don't understand. Normal voice please." and walk away until she can come to you with a normally vocalized request. It's hard and it takes time, but she'll get it. And if you are consistant, she'll figure out that the crying doesn't get her what she wants as well as words. My daughter is 6 now and when it does crop up again, which it has recently due to her copying behavior she has seen in a classmate, I just ask her, "Does crying get you what you want?" Magically I hear her normal voice seconds later.
It's not easy and it will take a couple of days for your daughter to break the habit. But at this point, that's all it is. A bad habit. Good luck.

Sometimes kids eat like snakes--a lot O. day and very little for a few. Mybe write down what she IS eating. It may surprise you. Avoid the grazing all day. Cut out any between meal snacks until the next meal.
As for the boredom, try devising and sticking to a schedule on the days you DO have her. Put AWAY some toys, as too many chices are overstimulating and confusing to a child. Give her a choice: Would you like to color now or work with Play Doh? Keep it simple. Maybe she has too much to choose from?

My pedi said to keep a food log daily for 2 weeks and then look at it at the end of the 2. Children will actually surprise you about how much they consume on a weekly (NOT DAILY) basis! Be consistent about meal and snack times and although it will be rough on both of you for a while it will get better. We went through a similar phase and I found that having a consistent daily routine really helped (although nothing is a quick easy fix) and sticking with consistent meal and snack times really worked. Instead of making meal and snack times anxiety ridden for me and control ridden for a 2 year old, he gets his food and has to eat in the kitchen. If he doesn't eat, it goes away and at snack time if offered a snack, if that isn't eaten it gets put away, etc. My son learned quickly that I meant business and if he was hungry he ate. I never made a fuss over it or turned it negative (kids will pick up on it) and just cleaned up and we went on with our day! He did not starve and it now a good eater! I had a difficult time in the beginning thinking he would starve or that I was being a bad mother but the consistency has really paid off and eating isn't a negative thing! Hope this helps! Good luck!

whew. been there, done that, dont know how I survived, but I did. YOU WILL TOO!

I dont remember much but I do remember "use your words" (or "talk normal" (STILL doing this with my now 2nd grader!) and also, he wasnt a good eater too. It sounds almost counter-intuitive but stopping the constant snacking got him to eat better. I made sure he had healthy choices - yogurt (he hated milk, so any way to get calcium into him was good!) dark leafy greens & broccoli (good sources of calcium) with dips & dressings. I often put a little cup or dish by/on their plate of ketchup or ranch dressing or peanut butter, whatever they like to dip their food in. They eat more! red/yellow pepper sticks, carrot sticks (cut lengthwise so it wasn't so thick & hard to bite though), etc. Anyway, he got to pick a couple choices, and eat. if he went away, the food got put away.
NO snacking for an hour or two before mealtimes, and he'd eat better.
DO watch and be sure to give a good snack at say, 10am or 3pm if you eat at noon & 5pm, for example.

The other thing is .. watch what kind of foods she's eating? (too much sugar causes my son to get irrational & have a meltdown!) is she getting enough sleep?

Maybe we should just put our 2 year olds together and let them drive each other crazy. I'm dealing with the exact same things right now. Laughter is the best way to shake them out of a funk, either with pratfalls or tickles. Believe me, it'll help you too. Just keep encouraging the use of words - give her a short phrase to repeat. I even use silly voices to help get her to say it. I have 3 other older kids, so I know this phase will pass - be reassured yours will too! Don't give in to her - it's so hard to stay patient while you're teaching her how manners will work and screaming won't, but in the long run, that will pay off.