How bad does teething affect a baby? Because Google is telling me that it’s basically a mild thing but my 7 month old has had interrupted sleep for the past few days and she’s been really really fussy, I checked her temp but it’s normal 97.6 she has a little cough and a runny nose and idk what it could be. She’s eating well & very happy all day. Her usual self but the night time man it’s something different !