To my surprise I find that it is a MacBook, not Air. At one time Apple switched the names... hence my confusion. Dopey me.
MacBook (Retina, 12-inch, Early 2016) MacBook9,1
Excellent places to continue looking. I had suspected the battery with the intermittent charging issue (the charging cable has to lined up just right.) I would never have thought swelling could be an issue so I will definitely check it out. Thank you!!
Thank you for your reply. That didn't work but didn't really expect it to. This thing is doing some weird stuff I just don't know how to explain. The USB/c port is intermittent for charging, clicking a file at the bottom of the menu and jumps to the top, and thumping. crazy right? (Wouldn't...