DD is 9 mths and fully BF. She has her first cold and this seems to have coincided with a drop in feeds.
She used to have 5 good feeds during the day (she sleeps through so none at night) but now she has a good one in the morning, and if I am lucky a few sucks after her two naps. And sometimes she will totally refuse her last feed before bed at night. This literally seemed to happen overnight.

I am offering water to compensate, and she drinks that fine. I'm not sure if her cold has put her off BF? She's not overly snuffly.
We do BLS and she is a good eater.
Do I need to offer her formula or would she be ok with one good feed and a few snack feeds at this age?