So this vine climbs my fences, Rose of Sharon, grape vines, tomatoes, black raspberries and everything else that it can get its stem on.
I don't think it is Honeyvine( Cynanchum laeve) or Milkweed Vine(Morrenia odorata), be cause the leaves are alternating , not paired.
The sap is not milky, and even though I thought it had "milkweed" type pods, I now think that the pods are marble sized with buckwheat like seeds and the "milkweed pods" are from a relatively minor population of Honeyvine.
I will try to attach some pictures, but if I am unable to, does my description match bindweed?
It looks like it could be related to the weed we call bindweed here in Colorado, but not exactly the same. It definitely looks like a morning glory family plant. What are the flowers like?
Warning: if it is bindweed, you have got one of the worst weeds on earth. Solarization, sheet mulch, tilling, digging, pulling, grazing, even herbicide: nothing kills bindweed.
The shape and veining on the leaves don't look like bindweed to me, but it's so variable and I know nothing of eastern plant variations.
Look at p 42, Dioscorea oppositifolia or cinnamon vine in this PDF, see what you think.