M.H.
I think this is normal as most of my 2 year old boy's friends of the same age went through exactly what you are talking about at the same time. Their parents decided not to worry about it and just fed them whatever they would eat. They are developed normally.
I fed my son only food that I made. If he wouldn't eat it, then I would try to change the flavor with spices or something. For example, to make oatmeal with milk, to add cinnamon or not, to add raisins or not, to add prunes or apricots or berries. Finally he would finally like one of them. Then I would stick to that, and slowly introduce new flavors. I used Fage yogurt and added my own fruits and wheat germ. I fould out he LOVES avocados, so I can mix just about anything with an avocado and he would eat it. He also loves apples, so I would mix beets with apples, and chicken with apples. In this way, I slowly expanded his diet. He ate a well rounded diet with a huge variety, and is very healthy. he is not a picky eater - at the age of two he happily eats sushi, most fish, turkey burgers, all sorts of things. it wasn't easy, I just kept trying. I didn't think of it as work - I thought of it as a fun experiement to win him over. When I found something he liked, I would make a batch and freeze it in cubes and have it to go to in case I couldn't get him to eat something one day. He wasn't big on chunks either, so I pureed everything for a very long time. He eats pizza on his own now though, he doesn't want it cut.
It's hard not to stress over food when they are so young and so small. Work on your cooking,a nd experiment with flavors. There are several guides on "pairing" foods that go well together - I used those a lot.
Here are a couple books I have on that subject (that's how I learned the apples and beets combo for example):
The Flavor Bible
http://www.amazon.com/Flavor-Bible-Essential-Creativity-I...
I can't remember the name of the other book that lives on my counter top and I use all the time, but they are similar.
Good Luck!