Fussy baby

Don't know if Gavin is teething or just not liking the stuffed up nose he has but either way he has been super fussy. It always catches me off guard because he is normally so happy. Yesterday he was not his cheerful self at the sitter and by the looks of it today may be worse! His day started at 4:40am and he proceeded to cry/scream in and off for the last 90 mins. =( poor dude.