8 week old baby teething?

U never know. all babies are different. Why don't you put your finger in his mouth and feel his gums..are they hard or little swollen up?..if yes then he might have a tooth very soon. My son is 9 month old ..he has been showing similar symptoms on and off as you have mentioned, for past 2months..still no sign of any tooth...but recently the texture of his gums look different, I'm hoping to c one soon..All the best...You are definitely going to have lots of sleepless nights :( Being a mother its really hard to c what your babies go through..