car wobbles going uphill

What is your question?

I have a 2016 Honda Accord. I notice that when driving down the freeway, most of the time it feels fine. There is just a big uphill area not far from my home. Driving up there on the freeway makes the car feel wobbly (as if the tires are wobbly or the weather is bad) and unstable. I check the tires after the first time I noticed this, and they seem to be on tight. Not sure if the extra load of going fast uphill is what is making the issue more apparant.