They don't cause autism, they can cause brain damage that can look like autism. My daughter is 17mo and only had a problem with her 15m shots. Unfortunately she got atypical chicken pox from the chicken pox vaccine :( That wasn't fun. Before that though she was always great. Never even got cranky.

Mine took it really hard, she was so fussy for like a week

same, nothing changed, I always watch my kids closely after they got shots. ever since I heard they cause autism and stuff smh