Ahhh first mum la, memang scary kan! At 37 weeks, hidung tersumbat and loss of taste mmg uncomfortable tapi biasanya tak berbahaya untuk baby, tapi sebab you're so close to due date, better check with your doctor or OB just to be safe la, especially kalau ada fever or other symptoms. I had a few mum friends yang kena similar thing dekat akhir trimester, and their doctors just reassured them it's normal pregnancy stuff, tapi tetap kena follow up. Make sure you're staying hydrated and resting properly ye!