Greetings, in God’s love and peace.
During my meditation I often feel a strong pulling up on my forehead and sometimes it would feel heavy after meditation. What causes that or what are the results of that?
When you meditate, you might be trying too hard, and as a result of the tension, you might have strange experiences, like the ones that you mentioned. You can try to focus on relaxing your eyes while gazing gently above the horizon. To clarify where to gaze: think of a point above the level of the horizon, and try to feel that your attention is drawn toward that direction. There should be no strain in your upward gaze. See if this helps. Gradually, these experiences will go away.