Any hormone "could" do this, regardless you will experience some sort of metabolic shift. Increasing lifts, hormones and so on will increase your basal metabolic rate, therefore you should increase your carb/protein ratio slightly and take it from there.
With AAS the truth is anyone can experience insulin resistance, hyperglycemia, hypercalcemia, and fluid retention. Yes, fluid retention while using var. Bear in mind we're messing with our entire endocrine, there's all sorts of chemical messengers firing x 1000's at this point, compared to prior. If you feel jittery, that's a different and unique side effect that is not normally documented on the leaflets for Var, it could be substituted with something.
I would check your BS levels upon waking up, fasted, and check them 2 hrs after you eat.. After you take your orals and you feel like this check your BS levels again because you very well could be experiencing a false-sense of hypo, this happens with some people, mostly with peptides though, although we can't rule out orals too, because this wouldn't be called science/chemistry if we did rule them out as potential possibilities on a individual basis.
Having a false sense of going hypo is very real and can actually feel like the real thing.
Check bloods every few hrs and go from there..