My 9 month old DS has suddenly morphed into some kind of tantrumming toddler and I don't know why or how he's developed this behavior. Up until now he only ever cried if he had some specific need like he was tired or hungry or needed a change.
Now he just screams and cries at me for everything all the time: if I put him down when he doesn't want to be put down, pick him up if he doesn't want to stop crawling, take away the electrical cable he wants to chew on, leave the room for a minute, try to make him drink some fluids in this hot weather, anything at all. He is incredibly defiant. He used to go to sleep no problem and self-settle very well, now he just screams as soon as I put him down and I have to keep going in to settle him. Last night he screamed and screamed when I put him down at 7:30pm so I gave in by 8:30pm (after trying 100 different ways to settle him) and took him to sit downstairs while I had dinner and watched a film. By 9:30pm he finally started to cry a little bit from tiredness so I took him up and he went to sleep straight away... only to wake me up screaming the house down at 2:15am and he screamed at me almost nonstop until 4am despite me feeding him, giving him pain relief in case his teeth were hurting, cuddling him (just wriggled away), letting him play, putting him down, picking him up etc etc.
He has had a couple of small colds in the last month and got his two front teeth through recently but although that explains some of the clinginess, he's no longer ill (as far as I know) and in any case, he won't let me cuddle him or sleep next to me in bed or anything so I don't know how to comfort him even if he is ill. I used to let him sleep next to us in bed sometimes when he was upset previously until he was 6 months and got good at rolling.
What do I do now?? He seems absolutely enraged at me most of the time and I don't know why. It's making me dislike him and want to go back to work. He really does deliberately scream too because he will look around to see my reaction when he throws these screaming fits and it reminds me of how a toddler behaves rather than a 9 month old. What is going on with him??? My husband is away on business for 2 weeks too so I'm dealing with this on my own and have no family nearby.