The type of chest pressure you describe—coming mainly with arm/hand movements or dancing, but not with walking, climbing stairs, or exertion—sounds more like a muscle or chest wall strain rather than a heart valve problem. Palpitations can also occur due to anxiety, stress, or extra beats of the heart which are often harmless.
Next Steps
However, since it involves the chest, it’s always safer to get an ECG and basic check-up to rule out heart issues.
Health Tips
If you notice persistent pain, breathlessness, dizziness, or chest discomfort with exercise, please consult a doctor immediately.