Mark, It's sandy soil where I am so the grass isn't too thick. There's a medium size front yard of grass though.

My non motorized push mower works better when the grass has thickened up a little as it's thick bladed grass. In my area we get our rains in the summer so it tends to take off during October and through the Summer which begins in December.

I can't use it on a slope though. The footpath is on a slope and that's difficult for me in case I fall on the road with my vertigo. Mostly I do that with a line trimmer/whipper snipper and only if I'm feeling steady.

It all hurts my back and arm muscles but I get over it. I actually enjoy it

Lawn mowing and yard work often involves quick turns and movement that can wreak havoc on a damaged vestibular system. Try to minimize or mitigate such movements from your routine and see if you notice any improvement. Also try your best to keep your eyes looking straight ahead rather than all over the place.