You are plenty early, so don't panic about that. But trying to understand this is a very good idea.

Neurontin is an often prescribed drug for neuropathic pain. I have been using it since my diagnosis of CRPS 4 years ago. It will not stop CRPS if that is root cause, but it often helps curb the symptoms.

An emergency room doesn't sound like an appropriate place for you. They often know very little about tricky problems.

Stay off ICE for sure; it is not good if it is CRPS.

You need to see a seasoned podiatrist that has experience with CRPS. Be point blank and ask the question about how much experience they have. It is VERY important.

Take it one step at a time. It's good that you are being proactive here, but don't get ahead of yourself. There may be another explanation for your symptoms. CRPS is very easy to misdiagnose. Both diagnosing you with CRPS when you don't have it, and also diagnosing you don't have it when you actually do. It is a very tricky condition.

Good luck and keep us posted!