Should I say something to my ex-employers?

It’s a looong story, so I’ll keep it to the point.
I was hospitalized for 2 weeks in November 2012. I actually went into some sort of unexplained coma for about 3 days too.
My husband was sharing all of the details with my boss. All on her own, before she even saw me or talked to me after I got out, she came to the conclusion that I had suffered some sort of permanent brain damage. I hadn’t.

My first day back she might as well have sent me an email telling me I was going to be fired eventually. She treated me as if I’d gone full on retarded.

I think she thought it would be easy to fire me. She could just say I didn’t know how to do the job any more. But I did.

She wrote me up twice, for really trivial things. Had a meeting with her and her boss where she aired her complaints.

That was just a stop gap. Wrote me up a second time. The thing is, her biggest complaint was that I was doing things that she had specifically told me to do.

Also, she came up with a couple of other things that I didn’t hear about until I was actually IN the 2nd meeting. She was complaining about a form I used that I had been using for 3 years! Apparently she didn’t want me using that form, but she never said any thing about it before then. The only clue I had was that a couple of weeks earlier she asked if I got my blank forms off of the shared drive.
I said, “Yes, of course.”
She didn’t say anything more, until the meeting.

She complained because I had misspelled a student’s name as “Tamantha.” When I said that’s how the student’s name WAS spelled, she just hushed me.

Every time I tried to defend myself she would shut me down.

I was fired on April 1st. It’s coming up. I haven’t said anything to my other boss or HR because I wanted to be sure I didn’t mess up my unemployment, but the unfairness of it all just BUGS me. I want to send them an email that will prove that her biggest complaint was about something she’d told me to do! And all the trivial shit she practically made up out of thin air!

It was like a witch hunt. Like I was completely set up. I still don’t know why. All I can figure is she set her self on a course of action and just blindly followed through with it.

All of my previous employee evaluations, which she did, up until I went in the hospital were great.

What do you think their reaction might be if I did this?