Your grammar is a bit confusing. But if you’re saying you have this symptom without anything else, and all tests are fine. Then I’d highly suspect it’s anxiety, see if your doctor think it is. But I don’t know your story.

I personally had anxiety, to recover, I didn’t do anything to get rid of it. I focused on living life to the fullest, and my body cared less and less about the symptom. I wasn’t able to leave my house for 6 months it was so strong. The more I lived fully and focuses on living in the moment externally rather than caring internally what I was feeling. The better and better I got the easier focusing on my day was. Until eventually i didn’t feel it anymore ever. But recovery is not a place it’s a process if I revert back to caring so much about feeling that again I prob would feel it again. But I don’t care because I know I can have a great happy day with symptoms at full strength.

But I don’t know you, your doctor is in charge of your mental and physical health. I’m not a doctor or therapist.
Good luck