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You have urinary symptoms for last 3 days it could be due to renal colic
because pain is severe and associated with blood in urine (Hematuria
There is strong possibility that there may be a stone in urinary passage most likely in ureter
Usually it gets infection also and trauma of stone causes blood in urine .
Anal gesic and antispasmodic will give some comfort but if pain is severe more potent analgesic
needs to be given and for this you have to go to hospital.
A Surgeon may be consulted in this regard get a CBC,Urine R&M, Ultrasonography
of abdomen, will confirm or give exact diagnosis and then it can be treated with appropriate antibiotics and drugs.