Any tips please? Only a 90 minute journey but she screams blue murder even on short trips. Goes completely red in the face, foams at the mouth, seems to not be able to catch her breath - it's so distressing & upsets my 2yr old as well. I've tried all the obvious solutions such as making sure she's fed, dry, comfortable, not too tired, adjusted the car seat, given toys. I'm already stressed at the thought of her kicking off on the motorway. She calms down immediately when taken out of the seat. Any advice welcome!