Teething…. I think

I'm in the same ⛵...
He even wakes up at night crying.
You can use your finger to see if teeth are growing. My LO still doesn't have any yet, but I give him water from a sippy cup and he learnt how to swallow and use his tongue.
No more dribbling!

Teething happens weeks before teeth cut x
My little boy cut his first at 6 months but was struggling for weeks before

Teeth are always moving whether visible or not

My little boy who is now 9 months, has been teething since 4 months. Dribbles, rosey cheeks, chews he’s fingers and moans in discomfort. It’s completely normal and all baby’s develop at different ages. I use the teething powered which I find helps him a lot! X

Teething is a long process my little girl was teething since 4 months but wasn’t visible until 6.5 months and got second a couple weeks later we’ve had a little break and now back to teething again so just offer lots of cuddles, teethers and pain relief is usually only necessary at the peak time or if feverish.
Saliva increases significantly before cutting, might see a rash around mouth, lots of pooping, cranky, biting may increase due to pressure, and you’ll see the gum start to separate and soon the white pearly.