Sometimes indigestion can leave you feeling like that.
Its also safe to take claritin or benadryl.
Saline nose spray....gargle with saline...humidifier.....its a post nasal drip.....sinuses act up in pregnancy
What kind of allergy pill?
I take an allergy pill because part of my morning sickness was because of that feel. Also mints, lemon candy or just hard candies help:)