Anyone else had a persistent sore throat ?

Mel • Mummy to a gorgeous girl and beautiful boy

I’m 35 weeks nearly and since just before Xmas I’ve had an on and off sore throat. It’s not been bad enough for me to take time off work or anything it’s just more annoying than anything else. Also noticing a few mouth ulcers that keep reappearing too. I’m wondering if this is pregnancy rhinitis or some other pregnancy related issue? Is it because I’m congested so always sleeping with my mouth open maybe? Anyone experiencing anything like this?