Hello there.
I sorry to say this, but what kind of peas are they! Peas normally have tendrills and are pale green. The leaves of peas are round in shape and your picture looks more like spinach.
If you can supply more details hopefully i might be able to help.
Shelley.b

Field peas. Have you inspected the underside of the leaves carefully for aphids or spider mites?

Field peas they are! And i did find aphids on one plant. Don't see signs of spider mites.

Checked thoroughly today and the only infestation is isolated to one plant...aphids. I've soaped them. That still leaves all the other plants twisted, discolored, and deformed. Is this a disease or a deficiency?