The most common symptom of PKD is high blood pressure. Other symptoms are: 1  Pain in the back and side. 2  Blood in the urine. 3  Frequent kidney infections.he most common symptom of PKD is high blood pressure. Other symptoms are: 1  Pain in the back and side. 2  Blood in the urine. 3  Frequent kidney infections.
The longest river of Europe is the River Volga. It flows primarily in a southerly direction through Russia into the Caspian Sea. The second longest is the Danube, flows west to east before entering the Black Sea.
The Danube River is the second longest river in Europe, flowing 1,785 miles from Germany to Ukraine into the Black Sea. The Danube River is a major water source in Europe and is Eastern Europe's chief source. The Danube River originates in the Germany's Black Forest where the Breg and Brigach Rivers converge. The Danube River's watershed is 315,445 square miles in size and the average discharge is 6,600 cubic meters per second.