Have new vows been incurred by the questioner due to what he said, and is he excused because of his obsessive thoughts and his prior fear of vows?

Your words do not constitute a vow (nadhr), and nothing is bound by them. Therefore, nothing is incumbent upon you regarding what you mentioned, because it is not a wording that indicates commitment. Even if you were to utter a wording that indicates commitment while under the influence of whisperings (waswasah), nothing would be incumbent upon you either. You must strive against these whisperings and endeavor to rid yourself of them.