I apologize for delayed reply.
You should discontinue kapalbhati as the way you are doing and may be because of Hyperoxia that occurs when cells, tissues and organs are exposed to excess supply of oxygen or higher than normal partial pressure of oxygen.
Can you please explain the way as to how you are doing kapalbhati pranayama, so that I can tell where you need to correct it? How many strokes per cycle of kapalbhati do you do? Strokes means number of forceful exhalations and cycle means in one go of kapalbhati.
Sometimes, we learn or replicate incorrectly, and it is important that we do in a correct way.