Crying hysterically

Last night, my baby jus wouldn’t stay asleep, and then after an hour, he jus started crying and crying... and it seemed like his gums were bothering him... had to give him Tylenol and shortly after he finally fell asleep... I hate not knowing he’s in pain... when he’s being fussy I assume he’s just being fussy... until suddenly he bursts out crying....

was very hard to give the Tylenol Bc by that time, he was crying and crying and inconsolable... 😕

Just happy to see his smile this morning ❤️

Does teething happen like this? I was told by his pediatrician that his gums were swollen and she saw the white, so she advised I give him Tylenol for pain when needed; however, I also read that teething is ONLY when the tooth is actually erupting, but... I don’t see the tooth?? So? Is he NOT teething?? OR is he? I don’t know how to help give him pain relief BEFORE it hits... should I give Tylenol, just in case?? Or jus wait for him to cry, before doing so? Like last night...