Hi Ladies (yes, its me again!)

DD had her first immunisations 6 days ago, and I noticed that she was incredibly sleepy, and not very hungry at all in the days following. Her appetite has increased, although not back to what it was. She is only taking one side for max 10 mins. Do u think this could still be from her shots after this long, or something else?

Many thanks in advance

ETA: Just thought i would add that she is currently on Zantac for reflux, and she also has a sunken front fontanelle which i believe is a sign of dehydration??