I was reading this thread with interest:
www.mumsnet.com/Talk/what_were_reading/4342858-AIBU-to-have-had-a-gut-full-of-psychological-thrillers
And I noticed a few requests for an author to do an AMA!
So here I am! 
I write psych suspense, have had three novels published, with my fourth out in a few weeks. My last book was a bestseller both here and in the US.
Happy to answer anything I'm allowed to!