I experience headache and shortness of breath after taking Gentamicin for hydronephrosis. Why?

Hi doctor,

I am a 26-year-old male. I weighs about 48 kg. I am writing this because I could not find proper diagnosis and guidance. This year I was diagnosed with bilateral mild hydronephrosis with 4 mm stone in both kidneys and also 4 mm cystitis. For one month I took ayurvedic syrup Calcurosin five to six bottles with Calcurosin capsules along with three kinds of antibiotics. After one month stones were passed and for hydronephrosis I took four doses of Gentamicin injections for two days. During these injections I suffered with severe head ache, vomit sensation, shortness of breath and urine cut for one day. I took this all treatment under a doctor of pharmacy graduate. So after getting all these symptoms I got afraid and immediately consulted a urologist.

The doctor advised to have a CT scan kub plain, the report found to be normal. And serum creatinine is 0.7 mg. But even though CT scan found to be normal still I am suffering from pain radiating from back to the front. Abnormal urination like some times very frequent urination and sometimes very less urination. Serum creatinine before a month is found to be 0.8 mg, and last week it was 1.0 mg.

At present my symptoms are:

Pain radiating from back to front, numbness in hands and legs, leg cramps and leg pain above the ankle and thighs, lower back and hip bone pains, constipation, abnormal urine output, burning sensation and pain in penis, sometimes getting pain in the left side of the chest even during laughing and sometimes it is difficult to breathe in the morning.

I am having recurring urine infection and bladder pain after masturbation. Doctor says no problem with masturbation and prescribed an antibiotic. But not addressing why it is happening? In six months I used eight to nine antibiotics.

Urine report reads as specific gravity as 1.005. Earlier the urine ph was 5.5, I used Citralka syrup. It came to 7.1 but now it is 6.0. Ten days back I done a ultrasound scan test and found normal. Urine osmolarity shows 85.

Why I am experiencing all these symptoms? Why getting abnormal urination some times more and some times less? Why creatinine is increasing (0.7 mg to 1.0mg)? Why specific gravity is low (1.005) which indicates any problem, earlier even during mild hydronephrosis it was 1.022? Why leg cramps, ankle pain? When there is no kidney problem why I am suffering from these symptoms? Is there any hidden problem? Once again shall I go for CT scan abdomen contrast. Will this scan cause any problem as I have already done it six months back but it is only plain.

Kindly suggest what is my problem? I am facing all these symptoms only few days after taking Gentamicin injection. Do this injection caused any problem? I read in the internet that Gentamicin can cause Bartter syndrome, renal tubular necrosis. Is that true? I am attaching a photo of my left leg foot which shows some abnormality. Kindly suggest.