I dont feel great

Ben was doing a lot b etter. Her poo has been normal for two days now but this morning I have found that she had been sick during the night. And I think it might be my fault. I gave her some 'whiskas temptations' last night My other cat loves them and I thought she might too. Yes she did love them but they have obviously made her sick again
On top of that I have found little tiny tiny bits of black dots on her pillow this morning. Quite a bit and some of these tiny black dots look like a little hook. but they are so tiny it is difficult to see. You really have to get up close to it. Does anyone know what that is?
She doesnt have any fleas anymore (I dont think) I have double checked and combed her with a flea comb but there is nothing. It seem sto be all clean. The black bits seem to come from her back part of her body as well as little flaky white skin (I dont think the white stuff is worm eggs - I had given her a powerful treatment for worms and this white stuff looks more like flake y sking then tiny rice corns)
I wonder what the black dots are? Sosme of them look like a hook. I couldnt take a picture because they are just too tiny. Also they dont move and are flat. I dont think it is a living thing but I just want to make sure. I really need some advice.
I will take some of them black dots to the vet as soon as I have the car but in the meantime...anyone there with some advice?
I am so scared that my house will be infested with parasites now