In our case, we had lots of nightwakings. Mine got overtired real quick. I only went to find out about the transition when I joint this site and by that time things got really bad (night wakings and early morning wake ups, not napping, tantrums, etc....). So, I kind of experimented until we found the best way to keep her rested. Putting her to bed early did help but she still had restless nights mainly cause she was overtired. Her am nap always started around 9am so she would only sleep for 1hr and then be awake 7hrs till bedtime. Her normal bedtime was usually 6.30pm so that would have been waaay too many hours to be awake so I had to bring it forward.
My rule was that... if she was not asleep for her am nap by 9.30, then I would keep her awake till midday (or try to at least until 11.30ish). That was just my thing thou cause I found that if she was falling asleep after 9.30 for her am nap, she would refuse the pm nap. She was never much of a catnapper in the car or stroller so it was hard for me to offer her catnaps in the afternoon - she would just play in her cot. On the days that the am nap was not taken, I used to take her out of the house (made it a little easier to deal with her tiredness), come back close to 11. Offer split lunch and off to bed.
I also had a theory that if she would have an early bedtime, she would wake up more rested in the morning and not need the am nap so much. It really depended on what kind of a night she had and the time she would wake up. If she woke up before 6am (which, again in my case hapened alot), I would most certainly offer her an am nap (but still limited it to say 45mins). If she had a decent night and wake up around 6/6.30 or sometimes till 7am, I would still offer the am nap but she would not always take it so then it would be lots of outside/inside stimulation in the hope that she would be taking a long pm nap.
An early bedtime will not always help if your lo has been up for 7-8hrs. They still get overtired and don't always sleep good at night. This was the worst of the transitions for me, mainly because I was 9 months pregnant with #2 at the time this all hapened and then the baby came home, new change, and she refused to nap altogether for a few days. I was really scared of creating a nightwaking habit by going to her all the time but believe me, it will pass. We just used to go to her and pat her back until she was falling asleep. As soon as she was better rested, the nightwakings stopped and she didn't need us again.
Sorry to ramble on, but I hope this helped. Sorry, I did forget to ask about your day...maybe like imsmum suggested if you post your routine, it will be more clearer of what your lo does.
Layla