Whenever I hypo, I am now quite good at limiting myself to 20g carbs, and usually in the form of a 200ml carton of Orange Juice, and then withhold the temptation to have more. What I have found with the aid of CGM, is that upto 24 hours later, even despite correcting the hypo with carbs myself, my liver will dump and I will go even higher at some point. If I correct this, I halve whatever the "normal" insulin correction would be, simply because my liver reclaims the dump it has done, and so a full correction, will inevitably cause a hypo a few hours later.
My DSN was explaining to me recently, that this rebound yo-yoing appears to be worse, when a) the hypo occurs over night, and b) the longer you remain hypo before correcting.