Testing for HIV after intimate contact is wise­. Your non-reactive result sugge­sts no HIV infection currently. Yet, re­member HIV symptoms like fatigue­, flu-like feelings, and swolle­n glands can take months to appear. To confirm, get re­tested after 3 months have­ passed. 

Creatinine level is usually seen in blood. Creatinine level in urine doesn’t have much significance. Generally if your blood creatinine levels are above 1.5 mg/dl then you should see a nephrologist.

Your boyfriend may have a reaction on the oral sex or in case of skin irritation. But this should definitely be evaluated by a urologist to rule out any possible medical complications. I advise visiting a urologist immediately.

Aapki wife ka urine mein jalan hona kayi karanon se ho sakta hai, jaise urinary tract infection, dehydration, ya irritation. Excessive masturbation is unlikely to be the main reason. Woh agar dusre symptoms jaise fever, back pain, ya frequent urination feel kar rahi hain, toh yeh zaroori hai ki wo urologistse sampark karein. Aap dono ko paani peene par dhyaan dena chahiye, aur agar symptoms continue karte hain, toh medical check-up lena best option hoga.