ketosis question

Comments regarding your diary.

I don't know your stats, but your calorie level seems awfully low for a male, unless you are very short and small.
In other words, the deficit seems too large.

No water is logged. You need a minimum of 64 oz. per day, and while adjusting to ketosis, I'd say double that, as ketogenic diets are naturally diuretic, and you're going to urinate a lot.

During transition, do not limit sodium, in fact, use it. Also, if you get cramps, take a magnesium/potassium supplement.

Eating apples, carrots, peas, and buttermilk, I doubt you will actually get into ketosis. These are more for maintenance because the carrots and peas are starchy vegetables, milk and fruit prohibited for induction into ketosis, as they contain too many carbohydrates to get you into ketogenic state because they up your overall carb intake. Generally speaking, to get into ketosis most folks need to consume 20-25 NET carbs per day. Tomatoes and onions are okay, but are veggies higher in carbs for much smaller portions. Try greens of all kinds, summer squashes, cucumbers, celery, mushrooms, etc. that have much lower NET carbs than tomatoes and onions.

NET carbs are as follows: carbohydrates - fiber - sugar alcohols = NET carbs. You need to change one of your columns on the website to show fiber so we can see how many NET carbs you are having. Currently, I see days with 98, 45, 39, 37, but have not idea how much is fiber.

Artificial sweeteners stall some people. You aren't consuming a lot of them, so I doubt this is an issue.

Nuts are generally not recommended for the transition into ketosis, but may be eaten once in ketosis in small amounts, as long as it doesn't stop your weight loss....transition may take two weeks or longer. Four days is nothing. If all you've had is a little headache and are urinating more than usual, that is normal. Depending on how much water your body holds and how big your glycogen stores were, you may not see rapid/dramatic weight loss.

Exercising heavy is not recommended during transition. Take it easy. Keep your protein higher during transition to spare muscle tissue. Most recommend approximately 150 g. protein during this time, and it can be lowered once in ketosis.

Make sure you are eating fats. At least 65% of your calories should be from fats.