100 Calorie M&M Kudos are my friend... :)

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I have been debating about posting on here but here it goes. I am new and not very confident with all of this. My biggest issue for years has been not eating frequently enough. I would eat once maybe twice a day (not binging probably hovering around 1200 calories Mt. Dew included). I have been told by my Dr several times that my body has just went into starvation mode (I think to myself... anorexic people are skinny, why not me??). Anywho, I started forcing myself to eat SOMETHING 6 times a day (ok, a glass of wine or a beer at night isn't eating but hey it's calories right??). This is my current issue. I am still averaging around 1000-1100 calories per day. I feel great but everyone says this isn't enough?!?! I guess my question would be will this really put my body back into "starvation mode"??

(Sample day- I work in nursing so I really don't have time to "eat")

Breakfast
Hydroxycut - Lean Protein Shake - Milk Chocolate, 11 oz 

Snack
Snack Wells - Chocolate Covered Pretzels , 1 package
Tea Bigelow - Green Tea With Pomegranate, 8 oz.

Lunch
Sarah Lee Bread 45 Calorie Wheat - Turkey Sandwich, 2 slices bread, 6 slices turkey meat, 1 tsp mustard
Banana Pepper Rings - Mt Olive Peppers Sliced, 1 OZ.

Snack
Dannon - Greek Light and Fit Blueberry Yogurt (150g), 1 container (150g)

Dinner
Grilled Chicken Breast - Skinless, Boneless, 4 oz.
Potato - Mashed Potatos 2% Milk and Margarine, 1 cup cooked 
Coleslaw - Coleslaw, 1 cup 

Desert
Corona - Light Beer 12 oz With Lime Slice, 1 bottle