Need advice ladies

So my son just turned 7 months old , and just a week ago he was NOT sleeping threw the night & drinking a lot of formula or what I would say the normal amount of formula during the day every 3-4 hours. He would wake up anywhere from 2-3 times a night asking for a bottle but 3 nights ago he started to sleep threw the night but I noticed he’d been refusing his bottle at every feed I don’t know why ? He will even go 4-5 hours without a bottle now . I know he is teething bad and I do offer Tylenol when he’s inconsolable but I’m just wondering if this is normal ? I feel like he isn’t getting enough formula now ? And he only wakes up once now at night to have a 6-8 oz bottle . And during the day he drinks 5-8 oz bottles with his 3 purée meals every 3-5 hours I’m just confused and worried my oldest was NOT like this . Any help or advice would be highly appreciated! Thank you 🙏