DD is 5 months old - from 11 weeks she was sleeping 11-12 hours a night, which was bliss. This lasted only a couple of weeks though, and she started waking/getting restless at about 4am - but we just popped the dummy back in, gave her a few shushes, and after a while she would settle herself back to sleep. But over the last few weeks, her restlessness at night has got worse - she now tends to wake up at about 1:30am, flailing her arms and legs about and playing for at least an hour (sometimes longer) before we can finally get her back to sleep - only for her to wake at 4am doing the same thing again. She doesn't cry - just thumps her legs up and down, and makes a few chatty noises - she's still sleeping in our room (we're planning on moving her into her own room soon).
The big question is - should we feed her when she wakes at 1:30am? She's a really good baby, and only ever cries when she's tired, so it's hard to know if she's waking because she's hungry (we put her to bed at 6:30pm, so by 1:30am she has slept 7-8 hours without milk). We fed her last night and she gulped it down (although she's also a really good eater - she never passes up an opportunity for food, so it's hard to know again if she really is hungry). We just don't want to start a bad habit of her needing a night time feed - as she has gone 9 weeks so far without needing one. I asked the HV about it and she was no help at all, so we're at a loss what to actually do.
Should we feed her at night? Or is it best to just try and comfort her back to sleep? Or is this just a phase and she'll soon drop the night time feed again? Any advice would be most welcome!