first and foremost i want to start by saying how brave you are.....hugs...
my parents died before i had a chance to tell them i was gay... so im not in a position to draw upon my own experiences.
For your mum, i guess it may have been a shock to her, then maybe not (she may have kinda figured it all out before u told her). Mothers know everything im told

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but if she didnt have an inkling you were gay, maybe she is questioning how she couldnt have known....I guess our parents set out dreams for us when we are kids and how our lives will be...i guess we just throw them a little esp when they dont factor in the fact we may grow up to be gay.
For me the deal about coming out ,was for me to finally reveal the lil secret i had carried since i was 4years old (when i knew i wanted to marry a boy) , i wanted people to know that i am still the same ol schlub i always was and really im not that different. i always say to describe myself as "gay" can be boring way to describe myself because its a part of me not solely who i am.
Mate, you suddenly havent sprouted horns and 2 heads- you are still the same guy, try not to feel too disconnected from your mum...trust me you only get one beautiful mother, its great she is wanting to talk... maybe she is needing to see that she hasnt lost her little boy and that you are gonna be ok.....\
In terms of trying to sleep, lay down close your eyes and try do some meditation, slowly try and wind your brain down, deep breathing.
In time things will get better, im not a praying man but i will pray to "madonna and kylie minogue" that you will be ok

... you sound like a really sweet bloke
i wish you loads of happiness.... keep smiling......keep us posted on how you doing... we might be (in my case the ass end of the world) and havent met but you got support here from ya JUB buds