I have a 3 month old who is generally a good baby. She sleeps well at night which I am very grateful for. However, over the last few days she's been very grouchy and slept almost the entire day. She won't come out of the sling for naps and will only stay sleeping if I keep moving. I've been on 3 walks today and have otherwise been constantly on my feet bouncing. If I don't do this, she just cries terribly. When she wakes up, she cries. I feed her and she cries again before I put her back in the sling and the cycle starts again. She's only had 2 happy awake times today, only lasting about 20 mins each. It's really exhausting and I feel as though I'm not doing anything worthwhile with my day. I can only think that it must be a growth spurt. Anyone else experienced this? Thanks