Strange Beeping Noises From Laptop While Scrolling (Lenovo)?

Sometimes when i scroll using 2 fingers on my laptop a beeping noise can be heard.
I have heard it with headphone and without.
Also when sometimes I type some letters are repeated.

My computer is a Lenovo 11e windows 10.
Is there anything to be afraid of?

Go to your Control Panel and check your "Accessibility Options". You may have turned on the "Toggle Keys" by accident. Or some other option that makes a sound when the keys are depressed.