My son is 3 months almost 4 and will be on the 14th of April next month. My question is if hes…

My son is 3 months almost 4 and will be on the 14th of April next month. My question is if hes teething. He gets really hot and he drools so much and has been super fussy sometimes to the point of wanting to be held constantly. Hes been nawing on his fist a lot but also his nose has been getting stuffy so idk if thats due to the teething any solutions or intakes on this comment below thanks (: