Why do I feel physical pain when the guide focuses on releasing emotions?

When the guide talks about releasing fear or sadness, I feel an immediate, sharp physical pain in my chest or stomach that wasn't there before. The pain is intense but fleeting. I believe this is a psychosomatic reaction where my body is physically manifesting the emotional old trauma being addressed by the guide. Should I stop when the pain starts? My name is Vivaan, DOB is 1st January 1992, in Mumbai. I was born at 5:30 AM.