possible seizure in infant?

My daughter is 4mths and very recently has been diagnosed with craniosynostosis.  I know that seizures can be a symptom. I am wondering if a baby is seizuring would they cry during it.  Tonight and on one other occasion, my dd started screaming like murder as if something suddenly hurt her and her arms were shaking, back was arched and the look in her eyes was like nothing I've seen before, it lasted for aprox 3 min and as I said she did cry through the whole thing which I leads me to think it likely wasn't a seizure ?, from what I've heard she would have kind of went blank and distant, and soothing eventually helped.  Just want to make sure it wasn't a seizure she was experiencing?
Thank you.

[Dr Sharma]

Hi there. Craniosynostosis is a congenital defect that causes one or more sutures on a baby’s head to close earlier than normal. Sutures separate each individual skull bone and early closing leads to an abnormally shaped head along with increased intracranial pressure, seizures and possible developmental delay. The seizure that your infant is throwing could be a generalized tonic clonic seizure where one has vigorous shaking of all the limbs not stopped by intervention, rolling of eyeballs, symmetric movements on both sides as if your kid had, could be pointers. The distant and blank look is suggestive of an absence seizure or petit mal epilepsy. Consult a pediatric neurologist for evaluation and care since she might have breath-holding spells and may asphyxiate. Take care.