possible to restart linux mouse module ? mouse scroll wheel (scroll downward suddenly not working), scroll upward still works?

I was pressing "ctrl" and scrolling the wheel of mouse up and down and up and down.. because the browser is a bit slow.. hence i overly zoomed in the webpage and overly zoomed out again.. (because the page reacted too slow, and i am too fast/ impatient)..

I did like scrolled to zoom in and scrolled to zoom out.. this i did about 10 times.. it kept overshoot the zoom size i want.

Then suddenly, i found out that i lost the "scroll down" feature of my mouse scroll wheel.

When in a long webpage, i can use "page down" but i can't scroll down any more. however i can scroll up the page when i am already paged down.

wherever i am, in terminal , in browser, in file manager... i tried scrolling feature, i can only scroll up, but NOT scroll down.

I highly suspect some software module of mouse somehow have go insane...

Is there way to restart mouse module.. i believe if i restart pc, it surely will fix itself.. but i would like to learn new trick of restart only mouse module.. also because i have got too much opened program i hope i don't need to shut down one by one and later have to open them up one by one... too lazy.