I hike the AT nearly every day in my home town of Dalton MA. Recently started having a problem with my left foot and wanted to ask other hikers about it. Under the ball of my foot behind my big toe has become very swollen, with fluid deep under the skin. It's about double normal size and it feels like I'm standing with thick tape stuck to the bottom of my foot. I have an apt with a podiatrist, but they don't hike and may not be familiar with this type of injury. The pain isn't accute, but it's uncomfortable, I'm continuing to hike but have scaled way back until I figure this out. Any thoughts or experiences with this type of injury? Suggestions for a fix?