Hi, The hymen is usually intact if you have indulged in non-penetrative sex. However, it may get ruptured or torn by exercises like playing games and cycling. Regarding getting outflow of fluid and feeling fatigued after phone conversations with your boyfriend, it is to be considered to be a normal physiological process. When you get excited and develop orgasm by such means, due to hormonal changes and innervations to the mucosal glands of genital organs, secretions increase in quantity and it comes out as discharge. Certain muscles of the pelvis, gluteal region and thighs get contracted during the process and might become temporarily rigid, which gives a feeling of pain in such regions. Kindly keep yourself well hydrated and take multi-vitamin and multi-mineral capsules to overcome such symptoms. Also, relax by practising breathing exercises and pelvic floor relaxation exercises. By such means, size or shape of the vagina will not alter. When excited, there could be slight changes in the vagina, but would certainly return back to normal after quite some time. If you are getting discharge continuously, kindly get clinically examined by consulting Obstetrician so as to rule out any form of infection. Kindly maintain your genital hygiene well. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Ashakiran S, General & Family Physician