please help me

i really am at my wits end.
I've been on BW prev as bradleysmom for those who go back a few years.
Anyway DS is 2 years 1 month and driving me up the wall with his eating habits. Very briefly he has never been a good eater, he only ate pureed food till he was over 12 months and never has the patience to sit and eat for longer than a few minutes, even now not even keen on eating finger food on the run. Still goes mad for a bottle of milk in the morning and one before bed, wont touch cows milk has to have formula. It has to be a bottle and I have to feed him. Nothing or no one else will do

As a single Mom it is incredibly draining having to do everything for him as well as keep tabs on 2 teenage daughters...
Sausages...thats all he will eat at the moment. Well and yoghurts, biscuits, chocolate, crisps. All of which have been banned for the last week (except yoghurts).
Is it OK for him to have formula in bottles at his age?
