Your blood pressure of 140/90 mmHg is slightly elevated. I advise against starting prescription medications without a proper clinical evaluation. For blood pressure, lifestyle changes like reducing salt are key, though a doctor might prescribe generic medications like lisinopril if needed. For your flank and leg pain, please avoid over-the-counter NSAIDs (like ibuprofen), as they can raise blood pressure and strain the kidneys; acetaminophen is a safer temporary alternative. Frequent colds are best managed with rest, hydration, and vitamin C. Please see your doctor for a routine urine test and blood pressure check to safely address the root causes of these mild symptoms.