GPT4 is on the case:

It might have been a message intended to say something like “My gymnastics balance is good, no problem with my tan, I’ll try to hit enter next time. Miss you.”

Yes, that clearly makes the most sense.

my phone is ghost touching hard recently and i swear in some cases i was this close to sending that sort of message to someone

I ntr H

ಠ⁠_⁠ಠ

Grandpa needs a bigger phone and/or a bigger font setting or maybe the screen reader enabled.