<s>[INST] Hi sir , I have 16 years old , I started masturbating from I was 10 , every day , and twice a day and maybe a 3thd time , new I feel weak , my heart beats sometimes fast beats , and I have a little pain in my stomach  can ejaculate this time , cause any problem ? thank you very much [/INST] I do not see this as being an issue, however if the symptoms continue it may be. A temporary alteration in blood-flow due to ejaculation and masturbation may cause shunting and or altered blood-flow to your gut temporarily, causing the symptoms of pain you are describing. Nonetheless this should be very temporary, and relieve within a few seconds to minutes. I suggest you hydrate, and make sure you have adequate blood volume before you masturbate next time, as to ensure your blood flow is more stable. If symptoms worsen and or new symptoms progress please contact emergency services! I wish you the best. </s>