Can toddlers get sick from drinking too much milk?

This morning my 16 month old daughter woke up at her normal time and i noticed instantly that something was off. She was acting really tired which is weird since she slept almost 13 hours which isn’t normal for her. She then spent the next hour or two just laying down watching her cartoons. She didn’t wanna play , eat , anything. She would start crying really loud randomly then stop. I would try to calm her down but nothing was working so i figured she might be getting sick so i gave her some baby tylenol but it didn’t help.

Later on in the night my dad had came over and i explained to him what was happening and i had mentioned that she drank 5/6 8 oz bottles today ( she drinks 2% milk ) because that’s all she wants , that’s all that’s been calming her down since she won’t eat. He said that giving babies too much milk can make them sick but she was feeling sick before that? I’m a single ftm , im sorry if this whole situation sounds stupid but i honestly didn’t know that was a thing. It’s now 9pm at night and she’s been up all day with no naps and she’s still so sleepy irritated and uninterested in everything. What do i do? What should i have done differently? Any advice or kind words would be appreciated, please no hate.