Steve - these are my suggestions:
Nap - Isabella is slightly younger than your lo & she still needs her nap. It did cut down to 1hr15mins for about a week but the extended back to 1.5hrs & she is doing 10.5hrs at night. I don't think she would be ok on 1hr & I definitely don't think she would be ok on NO nap any time soon. Sounds like he is overtired. I don't think you should cut the nap. Most toddlers still nap until they are 3yo & unless his bedtime is pushed to a very late time (like 9.30-10pm) then I am not sure if cutting the nap is a good idea
. Are you attempting to cut the nap because bedtime was too late when he was on a longer nap or becuase you think it might improve his night sleep?
I also think that the nap is a little too late if he is up to start the day at 6am. It might be that he used to sleep in later but if he's not able to return back to sleep in the morning, then I would slightly adjust the nap times & bedtime to his wake up hour so that at least he is better rested & not so grumpy during the day. Something like this:
6ish - wakes
12ish - afternoon nap
1.30ish - afternoon nap ends
7pm - bedtime (so that he is alseep by 7.30 the latest)
Him waking up in the morning & doing a poo could be just how his digestive system is. Some people go 1st thing in the morning & some last thing at night, some mid-day.... I am not sure if there is too much you can do about that. You could try to give him some prune juice in the morning so that he has a BM by the end of the day?
I think the bigger issue here is that he required your presence to fall alseep. You said that you stay with him until he is asleep at night & bedtime. What about trying something different.... do you think you could start taking yourself away from the picture so he doesn't have that association. When I was a little baby I NEEDED my mum to stay with me until I was asleep. Nights were a terror for her cause with every awakening she HAD to come out of her room & stay with me until I was asleep. She didn't have the heart to say no & my poor dad ended up on the couch & I took over their bed. It was like that until I was close to 11/12yo
. So I think you need to start breaking that association. Maybe you could stay with him until he is nice & drowsy but actually leaving before he is fast asleep. If he's up you could say something like... "mummy/daddy will be back to check in on you soon", "go to sleep" & then actually come back to check on him in about a minute, so you have his trust. With every 3-4 days you could extend that time until he is fully capable on falling asleep on his own.
More like the gradual withdrawal method -
https://babywhispererforums.com/index.php?topic=63896.0You
could put a baby gate but it might rile him up even more. Does he roam around the house when he wakes or just comes for you?
Don't let him nap in the morning - that would only cause more overtiredness cause he is then awake for a long time before bedtime. Try taking him out of the house in the morning, provide him with lots of physical stimulation & at the same time avoid that "grumpy" phase we all sometimes get in the morning. Then do a nice & long windown, read him books (this is for naps) & try to leave him before he is asleep.
Good luck & let me know how you go
Layla