How is your total energy intake? Has your bodyweight been trending downwards?
One effect of ketogenic diets and hypocaloric diets is higher adrenalin and lower serotonin. This speeds you up but is also stressing your body out. Nothing wrong with it if dieting or whatever. There is the concept of carb backloading, eating all your alotted carbs at the last meal of the day. This way you get more serotonin and have an easier time winding down.
Regarding GH, GH can actually be thought of as a stress hormone. It's released as a response to many types of stressors. But sure, it's also released at night so it's also a regenerative hormone. If it's worth it to try to increase it through diet to increase anabolism? Not really, the opposite is probably true
I lost 24 pounds over the course of 3 months, mostly bodyfat.
I would normally advise omitting breakfast, and eat lunch and dinner.
I can't, since I wake very early,
Drink organic apple vinegar and take l carnitine tablet
Do Wim Hof's breath holds.
Cold shower, followed by 45 minutes aerobic exercise.
Have a light breakfast.
During the day I do my weight training.
Followed by a protein and fat rich meal, with moderate carbs.
That's all.
Feel amazing throughout the day.
One negative, since I eat my last meal around 14:00 or 15:00 I sleep a bit hungry.
But I found a hack, which works amazingly.
A pinch of sea salt.
It definitely supress hunger stings.
Actually I first heard this from a 95 year old governor
He told me how poor he grew up, and how they used to eat salt when they were so hungry.
I never gave it a try as I saw salt totally unhealthy.
I can't talk about long term health effects, but it definitely serves its purpose on fasting.