I really feel you on this, when you're not feeling well during pregnancy, the last thing you want is to worry about whether your doctor will support you properly. I haven't personally seen Dr Sheri Lim, but I have a friend who did and she said the doctor was quite understanding and took her concerns seriously without making her feel like she was exaggerating. It might be worth just being open and honest with her about how you're feeling, because sometimes when we explain our symptoms clearly, doctors are more willing to help lah. Hope you feel better soon and get the rest you need!