Signs that babies want solids

Hi moms! I’m FTM, My baby is 4 months 20 days, is breastfeeding and formal milk. Following what I read, I plan to give food when my baby at least 5 months an a half. But around 2 weeks ago, She slept during night time up to 5 hours wake up to ask for milk. And so far she woke up every 2 hours to 3 hours to ask for milk, even though I fed very much before sleep. So far, she drinks around 800,900ml of milk a day, before that She drank 600,700ml. I’m happy when my baby can drink a lot, but I’m exhausted that waking up in the middle of nights to feed her. So the question is : Are those the signs that my baby wants to eat some solids food?#firstmom #firstbaby