Here are some signs of The Divine Spirit (link from another site), although we should always I think submit the experience humbly to a priest and accept his advice and follow it in the case of any confusion, or some experience that is out of the ordinary.
God can speak to us through anything (ordinary or extraordinary) coming to us through our human senses for one, but if it I am confused about it in any way - and/or - if it is out of the ordinary (extraordinary), then I would speak with a priest about it. I would be loathe to self assess in the case of the unusual or confusion, even from good source information such as below and would speak with a priest…nothing will be ever lost from seeking sound advice and the virtue of obedience, and The Lord will see to this…all will unravel and unfold and as God Wills.
domcentral.org/study/aumann/st/st14.htm#tos
The Divine Spirit
The following characteristics are general signs of the divine spirit.
1. Truth. God is truth and cannot inspire anything but truth in a soul. If a person believed to be inspired by God, therefore, maintains opinions that are manifestly against revealed truth, the infallible teaching of the Church, or proven theology or philosophy or science, it must be concluded that the individual is deluded by the devil or is the victim of excessive imagination or faulty reasoning.
2. Gravity. God is never the cause of things that are useless, futile, frivolous, or impertinent. When his spirit moves a soul it is always for something serious and beneficial.
3. Enlightenment, Although one may not always understand the meaning of an inspiration from God, the effect of any divine movement or impulse is always enlightenment and certitude rather than darkness and confusion. This is true both for the effects on the individual who receives the inspiration and its effects on others.
4. Docility. Souls that are moved by the spirit of God accept cheerfully the advice and counsel of their directors or others who have authority over them. This spirit of obedience, docility, and submission is one of the clearest signs that a particular inspiration or movement is from God. This is especially true in the case of the educated, who have a greater tendency to be attached to their own opinions.
5. Discretion. The spirit of God makes the soul discreet, prudent, and thoughtful in all its actions. There is nothing of precipitation, lightness, exaggeration, or impetuosity; all is well balanced, edifying, serious, and full of calmness and peace.
6. Humility. The Holy Spirit always fills the soul with sentiments of humility and self-effacement. The loftier the communications from on high, the more profoundly the soul inclines to the abyss of its own nothingness. Mary said, “I am the servant of the Lord. Let it be done to me as you say” (Luke 1:38).
7. Peace. St. Paul speaks frequently of the peace that comes from God (Rom. 15:33, Phil. 4:9), and Jesus mentions peace as one of the manifestations of his spirit (John 14:27). This is a quality that always accompanies communications from God; the soul experiences a profound and stable serenity in the depths of its spirit.
8. Confidence in God. This is a counterpart and necessary consequence of true humility. Recognizing that of itself it can do nothing, as St. Paul says,.the soul throws itself on the power and mercy of God with a childlike trust. Then it learns that it can do all things in him (Phil. 4:13).
9. Flexibility of will. This sign consists primarily in a certain promptness of the will to subject itself to the inspirations and invitations of God. Secondarily it consists in a facility in following the advice and counsel of others, especially if they are superiors, confessors, or spiritual directors. It is opposed to the rigid and unyielding will that is characteristic of those who are filled with self-love.
10. Purity of intention. The soul seeks only the glory of God in all that it does and the perfect fulfillment of the will of God, without human interest or motivation out of self-love.
11. Patience in suffering. Suffering is frequently the best touchstone for revealing the true worth of an individual. No matter what the source of the suffering, or whether it is justly received or not, the soul bears it with patience and equanimity and uses it as a means of further perfection.
12. Self-abnegation. The words of Christ himself are sufficient evidence that this is a sign of the spirit of God: “If anyone wants to be a follower of mine, let him renounce himself and take up his **cross and follow me” (Matt. 16:24). **
13. Simplicity. Together with veracity and sincerity, this characteristic is never lacking in those who are truly motivated by the spirit of God. Any duplicity, arrogance, hypocrisy, or vanity must be attributed rather to the spirit of the devil, the father of lies.
14. Liberty of spirit. First of all, there is no attachment to any created thing, not even to, the gifts received from God. Second, all is accepted from the hands of God with gratitude and humility, whether it be a question of consolation or trial. Third, while all duties and spiritual exercises are performed with promptness and punctuality, the soul is ready to leave even the most consoling and profitable exercise as soon as the charity of God calls it elsewhere. Liberty of spirit enables the soul to live in a state of constant joy and eagerness for the things of God.
15. Desire to imitate Christ. St. Paul says that it is impossible to have the spirit of God without having the spirit of Christ (Rom. 8:9). For that reason St. John of the Cross states that the soul that aspires to perfection must have a desire to imitate Christ in all things by conforming its life as much as possible to his.
16. Disinterested love. We mean by this kind of love all the characteristics St. Paul attributes to true charity (1 Cor. 13:4-7).