My 3 month old grunts and wiggles from gas from 2am to 6am, and has been doing so since 2 weeks old. tried everything. will this get better soon?

Grunts and wiggles: If your baby is sleeping with you , put him in another room so you won't hear his wiggling. Secondly, you might swaddle him before you put him to bed. Third, have you given him anti-gas medication. In the end he will do just fine. Dont despair

Normal variation: It is likely this bothers you more than baby. Ignore it. Never place blankets, bumpers, pillows in the bed with a baby after 1mo or as soon as you can wean them from swaddling. Dozens of babies die every year in the US after suffocating in their bedding.