Found: Robert Bloch short stories

I am trying to remember three short stories which I believe were all written by Robert Bloch. Spoilers are ahead.

The first involves a man who was convicted of crimes against women, probably assault. To prove his guilt, police need his blood, but he does not consent to a blood draw. Eventually, the police figure out a way to draw the blood in secret: they use mosquitoes. The irony is that he was convicted of crimes against women, and only female mosquitoes bite.

The second involves a man who runs a circus show involving big cats, like panthers. It is eventually revealed that the "cats" are actually people, including his wife, who he turns into cats.

The third involves a man being confused about his past/identity. He eventually realizes he is a vampire.

Any help is appreciated. Thanks! Robert Bloch wrote much more than Psycho, although that is his most famous work.

>1 EKLC: I believe that the circus one will be Fangs of Vengeance written under his pen name, Nathan Hindin. (There's a link but I don't think it's helpful.)

Yes, so now we are only looking for the other two. Fangs of Vengeance is the circus one.

I'm looking at the list of Robert Bloch stories on isfdb: https://www.isfdb.org/cgi-bin/ea.cgi?152
"A question of identity" looks like the third one. You can read it on openlibrary in Flowers from the Moon and Other Lunacies: https://openlibrary.org/books/OL350709M/Flowers_from_the_moon_and_other_lunacies
I'll keep browsing to see if I can find the first one, but I'll have to make a lucky guess on the title.

Yes, A Question of Identity is the third one.

Perhaps the mosquito one was not by Robert Bloch.

I found the last one; it is "Blood Will Tell" by Arthur Porges. It is an Alfred Hitchcock collection called Coffin Break; I misremembered the author due to Bloch's association with Hitchcock.

Nice! And thanks for letting us know.