Does anyone have experience with these? For the last two days I've started noticing something odd with my baby. She's 11 weeks and hasn't been easy due to reflux and colic. But anyways.... A few times yesterday when I would lay her down on the changing table or her crib she would be asleep or calm and get really stiff, like her arms became rigid and her eyes opened but were rolled back. Lasting a few seconds, enough to scare me. I thought maybe it was a muscle spasm or idk anything else... Started being more careful when laying her down... Very gentle and it seemed to help some but today she's done it  twice already and once was just sitting in my arms. Idk what to think.... I don't want to call the dr yet, I'm trying to watch her more before I panic because once I call I know they'll want to see her and do a bunch of test and I don't want to put her through that unless I have to. Just curious if anyone has more information?