Adjusting Calorie Goal After Significant Weight Loss

I have lost a significant amount of weight this year from exercising and consuming 1810 calories a day. Exercises include running, weight lifting, and recently insanity workouts (over the last 2 months). Over the course of the year, my weight has fluctuated slightly, but steadily decreased. I weigh myself every day as motivation so I see the subtle ups and downs.

Within the last week, i have started to notice a change. I am growing more and more hungry throughout the day. My meals aren't satisfying my hunger anymore. I don't have as much energy for my workouts anymore, which I do after work about 5:30PM. By the end of the day and I am ready to eat everything in site. I have slowly been gaining weight during this time. I know that this may be good weight gain as well, i.e muscle. I am eating 3 meals a day with a protein shake usually between meals. Take a look at my diary if you want. I know my diet isn't perfect.

My question to the community is this. After a person loses significant weight due to a substantial calorie deficit, should they increase their calorie intake to keep the weight loss going and energy level high? Should I consider increasing my calorie intake?