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Yes these symptoms will need evolution for sure. You should NOT hesitate !
The bruised could be from a immune phenomenon or low platelets. Loss of weight is a concern indeed. The blood in urine also needs evaluation. Although kidney stones could cause it, other symptoms could not be explained. There are many possible differential diagnosis in this stage. However before pointing towards a diagnosis you will require at set of tests (including, but not limited to)
1. Complete Blood count
2. Renal Function Test
3. Liver function test
4. Urine Routine (Protein , Microscopy )
5. Ultrasound abdomen.
6. ANA
7. HIV (if there is high risk sexual behaviour in past)
If you have any of these blood test do udpate me with the results. You can reply as a followup. Thank you