So my son is 8 1/2 months old. Such a good baby, no problems at all. He’s always ate good, pooped good, and slept well....... until the past couple nights. He has two teeth that just came in a couple weeks ago and i feel his teething might be contributing. But ever since he was about 3 months old he’s been sleeping through the night. WHY DID IT STOP. Lol. My body is not used to this. I lay him down at 9:30 and he’s up every 3 hours again like a newborn. Does anyone know what it could be???