iPad original ipad issue

[Ibrox]

Hi ok i have the A1337 original ipad wifi/3g model and there is sometimes an issue with the screen juddering from side to side like something has stuck in a loop also it judders to the next screen sometimes, when i press the screen pretty firmly sometimes it goes away and when i click the off button then click it back on (not full power mode) it seems to correct itself as well.

I was wondering if anyone is familar with this issue or came across something similar on there ipad at any time,not sure if it will be something wrong with the screen/digitizer thingy any help would be tickety boo thx