PaiN duRing Masturbatin n oRgaSM....plz help

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Hi to evabody...
um male aged 21,i started masturbatin 4m 16 (5 -6 times a week or evn 3 times a day) but now i do 3 times a week..Taz it...!!!!
From last few days,i get pain(not intense) near ma stomach (lower right, abdominal cavity) and on mi testis too while doin it....pain is durin d foreplay of mi penis & somtimes durin ma ejaculation.....I didn hv a sound sleep durin these days....I really do njoy my orgasm with a lil pain (DISCOMFORT) ....
Even when am normal(i.e., without masturbating or so)i still hv a slight pain(not intense..discomfort) alwaz in d abdominal cavity..Especially when i hv a walk,am more uncomfortable cos of pain....

I usually masturbate ba sitting on a chair or by lying down n BED......Does tis position matter in masturbatin???
I used to masturbate without ny lubricator...ba bare hands....Does tis matterr..???
Am i facing with any ejaculatory dysfuction...????
Hv i overused mi PENIS ...Should i stop masturbating if de problem prevails....????
Am i tottally done with mi sexual life...???Am still a virgin ...!!!
Will i b able to mak t up w a GAL....

what can b de cause for this:Is t Bcoz of Masturbating or any other Urological problem...??

I need coRREct replies.....so guys NO GUSSESS & STORIES plzz ...!!!!
cos um in serious trouble....plz help mi.....Advance thnx to ALL...!!!