Is this erythromelalgia?

So I’ll start with symptoms and then what causes flare ups. The symptoms I get are usually red and itchy feet. It’s kinda starts on the insides of my feet if you know what I mean. Like the right half of my left foot on the inside and the left half of my right foot. The redness and itching will go up to my ankles but only on the insides as well. This can happen when I shower when the water is hot and sometimes when the water is warm but not super hot. Even after showering my feet sometimes won’t even be itchy but still red. Another reason this happens is stress and my feet and ankles will get extremely itchy. I feel like when I walk around it gets better and my feet won’t itch anymore. Is this erythromelalgia?