My MacBook Pro trackpad has become hyper sensitive

Movie Fan wrote:

Lately my trackpad has become hyper sensitive. It seems like if my finger (or wrist even gets close to the surface of the track-pad, it goes active. Sometimes it moves the window, starts typing random characters, activates the previous window, or even closes the window I was working on entirely. I don't actually need to physically touch the trackpad. I think it would be helpful if you could walk me through reducing the sensitivity of both the trackpad and keyboard, I think that would be helpful.

[Re-Titled by Moderator]

I would look for any sign of seam separation caused by a swelling battery— this is a cause for immediate remediation.

inspect the exterior of the Mac and It should sit flat on table with no wobble...

there is no trackpad or user setting for a trackpad gone haywire.