I'm sure this is just another one of those horrible phases toddlers go through, but just looking for any advice or tips to support me managing him with this.
He is 15 months and usually a very good sleeper and cheerful boy. He has just started waking up at around 3/4am screaming and crying and staying awake for about 1.5 hrs. We can't put him down or he starts screaming again, but in the past if he ever woke up I would be able to give him a drink of water or calpol and rock him back to sleep in my arms. Not so anymore! It's like he hates being in my arms, wriggles away, doesn't want hands or arms around him etc. He lies with eyes wide open for 1.5 hours with bits of horrible scream / crying in between and then being calm but awake. I even tried milk the other day which used to be failsafe in sending him to sleep but it didn't work! He won't go into cot awake and gets really distressed. Eventually after 1.5 hours in my arms he falls asleep. This has happened for 5 consecutive nights now 
Other things going on are that he's suddenly become a really fussy eater. He used to eat everything and loved vegetables, but recently he's only eaten toast and a few other nibbles of meat if we are lucky! I keep trying to put healthy meals in front of him but don't know what to do.
He recently went down to one nap. He only naps 1.hr 20mins a day but was sleeping 7-6.30 ish. Now we've got this chunk of time awake in the night.
Any advice or do I just plough on and hope it's a short phase? Thank you! 