Insights needed on the practice of controlling ejaculation!!

Hey guys,
It's been 6 days since I last masturbated. I took this decision after I realized I've been excessively masturbating like 3-4 times a day, sometimes without any purpose. I just reach out to my D and start doing it.
I realized this is making me go down. I felt useless. Hence the decision to abstain from it. I've been quite successful considering my previous relapse rates were around 2-3 days.
But lately I started watching porn again. This time I reach out to my D but I just stop touching it when I'm about to ejaculate. I succeeded 4-5 times. I could control myself when I'm perfectly about to cum. However since past 2 days there's been an ache nea my lower stomach region. I'm worried. Is there anyone having a similar experience? Should I consider masturbating once to see if I'll be relieved of the pain? Please do share if you know anything of this sort. Thanks☺