Baby’s walking got worse after vaccine

Teresa🐘🌿 • Miracle baby born 10/20/18

Has anyone ever heard of this? I am slightly concerned. My LO started walking at 9 months and had a really strong walk with in 2 weeks. She has been able to go from sitting to standing without using anything to pull herself up on. Well at 10 months she got her first polio vaccine (she is on a delayed schedule) and since then she can only take 2-3 steps at a time. She is constantly falling over and is struggling to go from sitting to standing. I don’t know what could have caused this. But it’s sad to see her constantly falling.

Has anyone heard of this before?