So, no matter how busy you are, remember to drink a lot of water and urinate regularly. Once you form the habit of holding back urine, it will ultimately damage your kidneys.
If after having cold, symptoms like blood in urine, swelling, headache, nausea, vomiting, fatigue, poor appetite appear, you should consult your doctor immediately, to assess your kidney functions, and start treatment if compromised.
It is suggested that protein intake should be 0.8g/kg per day. This means that a person with 50 kg should consume 40g of protein per day. Meat consumption per day should be limited within 300g.
Use analgesics only when it's absolutely necessary, learn to rest instead of taking to the bottles. If you have been on pain killers for a long term, it's about time you had a test to access you renal function done.
This will ultimately help control your condition while also helping to preserve your kidneys.