Welcome to Anabolic Minds! Congratulations on losing 40 pounds towards your goal.
If you have a question of Keto Dieting, we have some very knowledgeable people here.
A few questions as well.
1. How much was your start weight?
2. What is your height? Exercise experience?
3. Did, do you take any supplements?
4. How old are you?
You mentioned the 40 pound drop, of 180 (to lose total)
5. How long did it take you to lose the 40 pounds?
6. Has anything changed since, or over the period of time? Stresses? Dietary? Medication?
Someone may recommend a metabolism restart if you lost over a shorter period of time. A purposed re-feed.
What does your diet look like? Proteins / Carbs / Fats
Changing things up, may be the right thing to do in order to confuse the body and get you back into losing again.
How about that exercise thing? Changing that routine may help too.