is that encrypted and how do i stop this from happening

 i have disable encryption and every thing in there is greyed out  i can not untick it

The image you posted has nothing to do with encryption. You are seeing the source view of email showing it's contruction. Try this to rebuild the index:

• Right click on folder and select 'Properties'
• Click on 'Repair Folder' button
• click on 'OK'

why does it do that is something wrong with my email

not only that but i clock on an email that was supposed to be from Huntinton Bank and something else came up

is it normal or is my email messed up?

i do run ccleaner and glary wold that do it

you are correct i did have the yellow that said a bout Attachments i agree what i meant was never did i or i never remember having the ones that said what i sent you about my name and such. but i red what you said and it sounds right. Thanks for your help .why doe that happen and i have to click repair what causes that is it something i am doing? again thank you for your help

It means something is causing a corruption and thus the index file which is used to display lists of emails etc is not totaly in synch with the actual mbox file storing the emails themseleves. One of the most common reasons is allowing other programs to interfere with your mail storage.

Anti-Virus and cleanup software are notorious for causing all kinds of annoying problems because they have a habit of removing/cleaning up certain files or trying to fix mbox files. These types of programs do not understand that mbox files contain many emails. They just see a single file. It is strongly advised that if you use Anti-Virus and cleanup programs that you make the Thunderbird profile folder exempt from scanning.

Sometimes files and get corrupted if you not compact folders on a regular basis to remove all the old unwanted and previously deleted or moved emails.