My touch screen is inoperable

If i click on any icon a voice in the background descibes its function and when it opens after a lot of effort the new menu items cant be accessed by using touch screen. Each available menu item sselected developes a green outline and not all of them are available anyway.

Also as you try to navigate through the battery keeps vibrating.

Many home icons like google are lost.

Is this a virus? Please help.

Regards

David