Sayang, I can feel how stressed you are lah, and it's totally valid, sudden GDM diagnosis on your third baby plus those confusing cutoff numbers between hospitals memang boleh buat kepala pusing! A few of my mum friends had similar experiences with BSP readings, and honestly, the anxiety sometimes makes numbers spike even more, so please be gentle with yourself. Since you're in Terengganu and feeling quite overwhelmed with the readings and treatment plan, I think it's really worth having a calm, detailed conversation with your doctor, maybe ask specifically about those cutoff differences (5.3 vs 5.8) and what exactly they're targeting for your case, because sometimes it does vary by clinic protocol. The fact that your friend's readings stabilised once she started insulin suggests your body might respond well too if it comes to that, tapi kena confirm dulu with your doctor what the next steps are if you're struggling to keep within their target. You're doing your best, GDM management memang mentally draining, but you've got this!