Some of my Miari is bent over mid stalk. I think that is a gentic disorder. 2,4-D herbicides can cause them to be bent over as can high winds.

Thin and pale sounds like nitrogen deficiency. Sweetcorn needs lots of nitrogen.

Without a picture it is hard to be sure what's going on.

It is kind of in a breezy area. I'll snap some pics later.

This corn experiment has been kind of frustrating. Neighborhood kids uproots a bunch of it a week or two after it first started growing and I had to re-seed. Then this started happening and I figured, great, kids again. But this time it looks more like some problem with my technique or the plants.

"The plants look healthy" ...seems puzzling if the stalks are pale and thin.
A couple other things can cause weak stalks....too wet conditions and too thick planting.

Yes, that was maybe not very clear. The leaves are nice and green, not dry and brittle. Where the stalks bent over they look pale and maybe a bit thinner than the rest of the stalk for a couple inches either side of the bend. That may have simply been the result of the stalks bending over while I was at work and being bent over for several hours.

I ruled out kids on this one though because I actually watch one of the few remaining upright stalks bend over while I was sprinkling the bed. Seems the weight of the water on the leaves was too much??

I got busy working on something else yesterday and didn't get a chance to snap a picture of a stalk. I have what's left staked now to support them.

One of the reason for weak stalks could be insufficient N (Nitrogen in soil).Corn is a heavy consumer of N. Try to feed N (Nitrogen) rich fertilizer.It may help.

I had problems with my corn stalks leaning right over almost to the ground after a heavy rain when the were about 12 to 18 inches tall. They seemed to have strengthed up as they got bigger and yes from what i believe Corn needs alot of nitrogen and i use one of those product that attach to the hose with a granulated fertilizer canister, i think the ratio is 24-8-16.