Dear D M:
You wrote:
Your information about the correct use of good and well when referring to how someone is feeling is not correct. Although someone may say, “I feel well,” and mean that they feel healthy, what they are in fact stating is that they are able to use tactile sensations successfully (well) – just as if they were saying that they write well, they see well, etc. Most grammarians would say that the (counterintuitive but correct) way to say that one feels healthy is to actually say, “I feel good.” In this way, they are not describing the way that they use their hands or emotions to “feel” in a successful way, but that they feel healthy.
Out of context such an expression could be ambiguous—“I feel healthy” or “My tactile sense is functioning normally.” However, in most cases the context is clear, so it really is a non-issue.
Thank you for taking the time to write.