sorry if this is a strange question, but when you're (hypo)manic, do you feel it in your gut? Like a nervous butterfly-filled stomach + don't feel like eating + "I just drank a pot of coffee" type poop habits?

I've never seen anything like this listed as a 'symptom' but it makes sense to me...serotonin plays a major role in moods, sleep, appetite etc. and 90% of it is located in the gut. It seems like a fluctuation in serotonin levels would effect the stomach (I also feel like I read once that depression can be associated with constipation?) I know drugs like zoloft (which increase serotonin) commonly cause diarrhea and are also used for IBS...

Anyways, just wondering if others experience this or if it's just me