Can't save blog posts and being blocked by host firewall

I spent the morning actively creating a blog post and when I went to save, an empty green bar appeared across the top with no message but nothing else happened and the post was never saved and I couldn't even close the editor. I couldn't save for later or anything. It was frozen but I would just get empty grey boxes.

When I went to check my home page hoping it had worked, I could no longer connect to my site and my ip was being blocked for to many login attempts according to my host. It appears every time I hit publish it was a login attempt thus I was blocked. After they unblocked me, I would log in, redo my post and then the same thing would happen. 3 times I've had to email my host asking them to unblock me!

The thing is that when I say actively working on it, I mean there wasn't even a 5 minute time period where I wasn't trying to add a photo, link or editing something. I didn't stop typing or walk away but it appears I was logged out maybe.

I really appreciate any help.