Hey brother, yea, everyone is different but different brands of GH can have a unique effect too. Some people get more sides from certain brands while better tolerating other brands so one thought is to try a different brand. This is even true of pharm grade. 8iu is a pretty hefty dose, even if you cant get beyond that, you’re doing quite well. Side note, be sure you check your blood sugar. Dosing this high for this long, you are bound to suffer some insulin sensitivity issues. Make sure you are managing your blood glucose