Ok got abit of a tricky one.. my little girl is 23 weeks (tomorrow) on and off all day she randomly…

Ok got abit of a tricky one.. my little girl is 23 weeks (tomorrow) on and off all day she randomly starts screaming and getting really upset. she does settle back down but then will just start getting upset again for no apparent reason. She is teething which I am dealing with calpol and something herbal but what else could it be? she's done 2 little poops today and I can't decide if she needs to go again could she be constipated? any help please 😭😭