My DS has always had an 'imaginary friend' for as long as he could tell us she was there, it's never been an issue or a problem until lately, firstly he is genuinely scared to stay in his own bed all night as his friend 'tickles' him, he had crept into my bed for the last 3 weeks despite me taking him back to his room and staying with him numerous times.
Secondly he hates mirrors (or anything with a reflection)- this included a drink on one occasion- he won't walk past our letterbox for example.
He is also terrified of lifting up the toilet seat (I think this is because he dropped one once and it made him jump!)
He is massively clingy with me right now, he will follow me from room to room and will not, for example stay downstairs on his own even for a second.
His most recent fear is trees 
we went for a walk in the woods at the weekend and he hated it, if fear one too many fairy tales have caused this one!
Seriously though I am on my own with him most of the time as DH works away. I am upset and exhausted, I know that being impatient is not going to help and that he needs reassurance but I am impatient, and I any help but feel frustrated :( I would really appreciate some advice, my health visitor tells me she is too busy to talk :) thanks