Losing 5 lbs in 5 days is incredible!!!

Your going though sugar withdrawal right now. Stick with it, it will get easier. Once the sugar is out of your system you will NOT crave it.
Ideally, healthy snacks are what to eat between meals, to keep blood sugar up without unnecessarily spiking blood sugar levels, and tiding those hunger pangs until a real meal.
These are what I eat for my healthy Snacks:
Sliced turkey & lettuce rollups (no bread,) with a slight smear of mayo or mustard. Sometimes I add in a slice of cheese. I love Oscar Mayer's "Deli Fresh" shaved turkey slices just for this. In Ph.2, these can also be wrapped around a crisp slice of apple.
Celery sticks filled with cream cheese & topped with chopped walnuts or filled with no-sugar peanut butter. Or filled with Laughing Cow Lite cheese. I cut one wedge up into small pats and they either go on 3 celery sticks, cucumber slices, or strips of bib lettuce.
A scoop of tuna or chicken salad, or egg salad in a lettuce cup. Later in Ph 2, dip in whole grain crackers or pita triangles.
Wedges or cubes of cheese, or string cheese.
A handful of nuts.
Sugar free yogurts with nuts.
Deviled eggs. Homemade, pre-baked chicken nuggets.
Turkey hot dogs (without the buns) sliced up like Vienna sausages.
Can of refried beans topped with low-fat shredded cheese and low-fat sour cream, scooped up with celery sticks or lettuce leaves.
Hummus has become my new best friend. I have hummus scooped up in lettuce leaves rather than pita chips.
Phase 2 add:
Mini pizzas made on whole grain pitas, (instead of pizza dough, to keep the ratio of carbs to protein down, and the whole grain fiber,) with jarred tomato sauce and loaded with low-fat shredded cheese. These bake up quick in a toaster oven.
Nachos made with baked, stoneground whole wheat pita chips and smothered with chili and shredded low-fat cheese.
*** Make sure you drink enough water. It really does make a difference. Water lubricates the system and allows for better digestion and fat to burn more efficiently. It also flushes out the toxins & sugar. ***
Also, when you get to Phase 2 & 3, there there is a difference between a "snack" and a "treat." Even sugar free cookies or candies should be a treat and not used to quell hunger pangs. Treats should be portioned out to a few sweets: 2-4 cookies.
I love a good half cup of sugar-free jello.
Oh, and keep your iron up. I recently found out I am iron-deficiency anemic. I thought the majority of my carbo craving were from being hypoglycemic (low blood sugar.) But, as soon as I got on good iron supplements, my carbo cravings disappeared. Anemia makes one crave non-nutritive foods, because you're trying to suck out the iron from anything you can get into your body.