Thanks for all the responses!
What I have for lunch varies. Today I had a couple PB&J sanwiches with some milk. Some days I"ll have pizza. Others I'll go to Boston Market, get chicken with corn and veggies. I don't eat fabulous, but not awful.
Glad you came back to post OP, and my
general PSA didn't scare you off. I'm not bashing you, just trying to help you pick healthier food choices so you don't have this problem.
PB&J sandwiches, believe it or not, is actually not a healthy sandwich (carbohydrate wise.) It is about 89% carbs to protein. Yes, there is a small amount of protein in the peanuts. But, most peanut butters, (unless you get the organic, no additive kind,) has added sugar or corn syrup. Then there are 2 slices of bread. (You had 4, for the two sandwiches.) If they were white bread, instead of whole grain, the carb count is really high. There would also be little to no fiber. (Fiber aids digestion and slows how quickly carbs burn in the body.) The jelly, even natural preserves, are pure sugar.
Milk, regardless of all the milk commercials, is high in lactose, which converts to a sugar in the body.
So, what you had today, was about 89% carbs
in ratio to protein.
This is what I meant, that the majority of people eat more carbs that they
realize. 
Again, not bashing.
Protein is a slower burning fuel, so you when you eat it in the proper food combinations, it will still be in your system, even as the carbs are burning away quicker. So you wouldn't get those blood sugar dips. Technically, there would be enough protein in your system until you have your next meal.
As others said, it is a good idea to eat smaller meals + a couple snacks, and eat more
often. You want to eat
before your blood sugar dips, so your energy stays up.

When you have a
healthy snack, it should help tide your blood sugar over, till you can have a full meal.
A quick analysis of your other lunch choices: pizza is high carbs too, to the ratio of cheese. Add some sausage, or chicken, for added protein, or add in an extra protein on the side. This way you can still have your pizza,

just balance it with more protein.
"Boston Market, chicken with corn and veggies." I love Boston Market. The chicken is great to have, but when I go there, I have to be careful of which sides I get and how much I actually eat.
All vegetables are carbs. Some, like beans, do have protein. But for the most part, when you are paying attention to the carb count, the ratio of carbs to protein is again high.
Corn is a high sugar carb. So are the sweet potatoes. Plus they add the marshmallows on top. Potatoes are an extremely high carb/sugar vegetable.
The stuffing is carbs. The corn bread is carbs + fat.
When someone gets one of their normal dinners, which consists of a quarter chicken and 2-3 sides, again, that ratio of carbs to protein is high because of the amount of sides and the choices available. If you add in a sugary drink, even juice, the sugar ratio is over the top.
Suggestion: load up on more of the chicken, like get the half chicken or other meats at Boston Market,
and the steamed veggies and the Caesar salad. Skip the corn bread. If you must have the stuffing or mashed potatoes, eat
less of them in ratio to the chicken.
When I get the sandwich, (any sandwich even cheeseburgers as McDonald's,) I end up pulling away most of the bread (carbs) as I eat it. Basically there is only enough there so I can actually hold the sandwich without getting my fingers all messy from the sauce or dressing.
At the end, the wrapper has a big pile of shredded bread on it. It looks like I'm about to feed the birds.

It's amazing how much bread there is.
