Please! Feeling rather at the end of my rope with DS.
He's 4. He started preschool in December - 3 days a week from 9-2.30 - and has been fine so far. At the end of Feb we travelled back to the UK for 2 weeks to visit families and he missed 2 weeks of school. On the week we arrived back school was closed 2 out of 3 days because of snow. The week after that he went for 2 days and all was well, then on his last day things started to go wrong. After a fractious walk to school (he was playing up and whining, I was exhausted and impatient) he had a huge meltdown after I dropped him off, screaming, crying and lashing out. His teacher, having never seen him behave like that before, assumed he must be ill and called me to collect him after 30 minutes.
Last week school was closed for spring break. Yesterday morning - his first day back - he announced he didn't want to go. When we arrived he started to cry and lay in the floor, refusing to get up. He was screaming by the time his teacher picked him up and carried him in to the classroom. When I went to Collect him his teacher had left early for day. The head teacher was supervising the class so I asked her how long he'd taken to settle. She told me that he's calmed down eventually, but only after he'd thrown two chairs and had to be removed from the classroom
. I was mortified! He does sometimes throw things at home when he's very angry and upset, but never anything big and he always gets sent to his room.
This morning he announced again that he wasn't going. Lots of crying and pleading at home, and then screaming and sobbing and being carried in by his teacher when we arrived.
I know it's probably just a phase but I don't know what the heck to do while it lasts. When I ask DS why he doesn't like school anymore he tells me strange things like : "the teachers set booby traps and trap me in a cage" 
I find it so upsetting and embarrassing to drop him off when he's behaving like this, and I'm worried he'll get a bad reputation or even excluded from the school for lashing out and throwing things.
He's always been very highly strung and volatile. He tantrums much less than he did, but doesn't seem anywhere near growing out of them yet. We don't give in to him, but anything being not exactly as he wanted or expected can set him off - he seem so sad and angry and completely unable to control his emotions.
Please help 