My daughter who is nearly 5 months had been in a good routine during the day, she would feed every 3hrs then 2 hours after the start of each feed go down for a nap (she would only last 30-40 minutes but was very happy and wide awake after that).. for example:
3pm feed
(play)
5pm sleep (30-40 minutes)
6pm feed

The last couple of days she has been falling asleep after her feed in the morning (around 9am) which kind of put her out of whack for the rest of the day. Because by the time her next feed was coming near she was becoming tired and hungry then didnt feed particularly well. She sleeps in until 8:30am normally (even though up a couple of times through the night until then) so she shouldnt be so tired in the mornings.

Should i be keeping her awake after her feeds so she (hopefully) gets into her old routine which was working really well? Or should I just go with the flow and let her lead... i would normally do this with most things but I cant see it as being the best for her because she is getting unhappy as the next feed approaches and she has been up so long.
Would this change be due to growth spurts or something?