These are carb cravings, not "hunger pangs"
Sweet n Low or other artificial sweetners dont provide glucose, are usually worse for your body than real sugar, and will not help your carb cravings whatsoever
Testosterone is going to make you hungry for every macronutrient the body needs (fats, carbs, proteins, etc). Your running a cycle, u need to eat... a lot.
You're probably cutting carbs during the day to get lean. This will end up slowing your progress down. Your body is trying to synthesis tissues in response to the resistance training combined with the high testosterone levels. It cannot do this without insulin. But if your cutting whole carbohydrates (you need a lot, i mean A LOT. Try incorporating brown rice into 3 of your daily meals) during the day, your bodys gna tell you close to bed time that you simply cannot afford to go catabolic while you sleep. Its build and repair time, not tissue breakdown time. Your body simply cannot adapt to the work your subjecting it to without it being anabolic at all times (and by running a cycle, your body is getting the signal from all that testosterone that, among other things, you are working your muscles very hard and therefore need as much anabolism as possible in order to adequately and efficiently adapt).
Now on top of this dillemma, your taking HGH. This is really going to cause intense carb cravings even more at night time. The worst thing you can do here is ignore them or fail to satisfy them. Look up acromegaly, you really wna look like that? If youre taking actual HGH, stop. If your taking dopamine agonists or ldopa, keeping insulin at a level adequate to maintain anabolism will result in leutinizing hormone release instead if HGH release, which Im sure wouldnt necessarily be a bad thing for you. It may to some degree slow the hypogonadism associated with running a cycle. Keep in mind that dopamine competes with serotinin production, and low serotonin will make you feel irritable, non-social, and depressed and it will also cause psychologically induced simple carbohydrate cravings, especially at night. This can be offset to some degree by supplementing with 5htp.
Ive never done steroids, but Ive sold them to many people wanting to take shortcuts to looking the way I do naturally. You'll find, if you stick with the body building thing long enough, that steroids were dumbest thing youve ever done in youre life. Its laziness, plain n simple. You can get the results you want by doing the work. Your nuts are the best way to get all the testosterone your body needs, no more and no less. The more artificial test you subject your body to, the less your balls are going to function correctly and give your body the healthy balance that it needs. I mean listen to some of these guys on here... the sh*t just makes you straight up retarded, n no woman wants that no matter how masculine your body is, lol.. counter-intuitive if you ask me