Got ur pain n concern though it's unfortunate but common too. Its an art n technique to be masterd with calm mind.
Prior that Ur issueust be evaluated by past medical n surgical history n Examination in person to sort out n train u by couple of yoga n Tantric/ kegel exercise.
Next Steps
Consult AYURVEDIC college Hospital in ur city or clinic or feel free to communicate me
Health Tips
Till u consult spare 2hr bet'n dinner n u active sexually, Ur Love care and compassion will assure Ur partner