Sayang, I'm so sorry you're worried, given your history, please call your doctor or OB/GYN directly (don't just rely on CAC) or go to the hospital if you feel worse, okay? They need to know your situation and monitor you properly. For now, rest a lot, minum air banyak-banyak, and monitor yourself closely. A few of us kena COVID masa pregnant and paracetamol + rest really helped, but check with YOUR doctor first about what's safe for you at 16 weeks. Jangan stress sangat (I know it's hard), most pregnant ladies recover fine, tapi you need proper medical eyes on this. Stay safe!