I took my 3 month old to dr because she'd been sick. Unfortunately, the dr said she had torticollis and we would need PT. DS had plagiocephaly and torticollis and we had to do the PT route also.
When she said she'd have to do PT I told her no and we would do the stretches at home. She said if DD wasn't better by 4 months she would send her. I'm sort of doubting myself now and getting paranoid she'll have to have a helmet.
Torticollis seems like a common thing except I don't know anyone whose children have had it.