Advice on weaning please!

Hiya, 

I'd love some advice on weaning! My lo is 5 and a half months. I got advises by the health visitor too Tey weaning as she was pretty hungry but struggling with her milk due to silent reflux! She seemed pretty ready and the first week went amazing, she loved it! All of a sudden she's refusing any food. Just clamps her lips together and pulls a face! I cannot work out why, it's the exact same face she pulls when I give her her reflux medicine! Any advice on how to get her to enjoy it again or even just to taste it!  Thank you