First off with having the pain in the testicles and lower abdomen, you need to get that checked out by seeing your doctor, even if things have settled down. Sometimes there is an infection in the testicles, the epididymis (the gland in between the testicles), pain can be referred from the bladder or even the prostate gland. It would be a good idea to get your prostate gland checked too.
It crossed my mind that you may not be sexually aroused because of a mental thing, may be worrying that this is someone that you work with and did not feel relaxed enough with. Psychological problems can have an effect on your performance. If you had too much alcohol that too can cause you to not to finish with an ejaculation no matter how much foreplay you get. Being overtired can have the same effect.
The other thing is, if you did masturbate yourself earlier in the day and ejaculated, your body would need to rest and may not be ready for ejaculatory sex until the next day. When men are very young, they may be able to get more than one climax a day, but as people age, this can get much less.
If you ejaculate too soon, there are techniques that you can use to delay ejaculation, you may find something on the web about that, so that you can hold on and not ejaculate too soon.
Your doctor can also do a blood test to check your testosterone levels. If they are low, he can prescribe a testosterone gel that you apply to your skin (not your penis or genitals).
Make an appointment to see your doctor to check your testosterone levels, your prostate and tell him about the pain in the testicles and the lower abdomen. Lower abdominal pain may be an infection in the bladder. Your testicular and abdominal pain needs investigating.
Let me know how you get on.
Best wishes.
Thank you so much for the reply and time.
Yes i have stop masturbating slowly slowly now, Do you have any idea why i getting these wierd pain in my abdomen?
First, you write frankly as necessary with no course language involved. As far as your situation, it is good that you resolved to space out your masturbation. As you have masturbated twice per day for many years, you got very used to what felt the best and excited you the most. Now, you are attracted to a female, but when you get intimate with her, it feels quite different than what you are used to from masturbation. There could also be a degree of shyness involved with being naked and close with an attractive female along with a certain amount of pressure for you to "perform" that you don't have by yourself in private. Avoid any supplements or drugs at this time. With a willing female, as you are naked together, massage and stroke her, getting used to each others nakedness. Pay special attention to areas that interest you. Take your time. Eventually, orally satisfy her, disregarding yourself. After several of these sessions, hopefully, your erection will return and you can carry on from there. You may need to stop masturbating altogether for best results.