2016 Macbook Pro - Horizontal Lines on Screen? Go away after 10 or so mins?

Hi, wondering if people can help

I have a 2016 macbook pro touchbar.

I have suddenly started getting horizontal lines on the top portion of my screen, these have progressively gotten worse to the point i have lines across my whole screen when i first turn the laptop on, the screen is also very laggy.

I have done some reseach and most people are getting this isssue after a while of use where the macbook gets hot, however I get this when the laptop is cold when i first boot up and after about 5-10 mins the lines go completely.

I have reset SMC and PRAM with no change and also taken a screenshot of the lines, the screenshot shows no lines so does this point to a screen issue? or another hardware issue?

Pics attached

Thanks