An oft-asked question and a good question indeed is, “How do I know if God is talking to me?”
If I asked, “How do you know I am talking to you?” Your response would likely be, “becasue I can see you and hear your voice.” So you trust your physical senses but do not trust your spiritual senses. Probably because you have and continue to use your physical senses all the time. Maybe you should use your spiritual senses more often and become familiar with them.