Please help 6 month waking regularly

My Baby girl is 6 months and currently wakes anywhere from 3-5 times a night and it's really starting to kill me. She has been a very great sleeper, with a patch of sleeping 6-10 hours around 3 months, then more usually waking once or twice, and started waking more frequently around 4 months. It seems to be getting way way worse though and I can't think what to do. She never used to need to feed to sleep and now she won't settle at bedtime without pretty much doing that, and I have to feed her every time she wakes in the night or she goes mental ... I'm sure it's another phase - she seems very good at those, never having been in any sort of pattern ever! - but I'm terrified this one'll last months and/or that we are getting into awful feeding to sleep patterns. I've just started her on solids so she's having breakfast in the morning and dinner in the night. Anyone have any advice?? Especially on alternatives to settle her in the night instead of feeding!