Baby suddenly cry when sleep

Is he cared by you or a caretaker etc childcare or helper? Maybe he has nightmares. Why not try diffuser that helps calm babies to sleep or even nightlight so that ur Lo wont feel insecure..

Yes it’s normal. My little one still has this problem at around 6 months old. It can be due to startle reflex or having bad dreams.

I believe it is call night terrors. Talking gently and touching or cuddling him may help him become calm.

Yes it is. It’ll usually mean he is hungry, needs a change in diapers or feeling uncomfortable

maybe itll help if you touch or hum a song to let him/her go back to sleep.

Sometimes they do it, could be any factor eg too warm, hungry, etc

Yes, normal. Just give him assurance by lightly patting him.

Have you tried to place the husk pillow over his stomach?

Yes normal. Light pat or putting a husk pillow helps :)

Could be due to hunger or needs a diaper change.