A: Metoprolol belongs to a class of medications called beta blockers, which are used to treat high blood pressure, angina, and congestive heart failure. The most common side effects are dizziness, lightheadedness, or slow heart rate.
Other symptoms of testicular cancer may include: 1  Testicular pain. 2  A sudden gathering of fluid in the scrotum. 3  An abdominal mass or abdominal pain.  Loss of weight or appetite; fatigue; lower- back pain; chest lumps, breathlessness and 1  cough. Infertility.
Common symptoms of testicular cancer include: 1  A swelling and/or lump in one or both of the testes. 2  A heavy feeling in the scrotum. 3  A dull pain or feeling of pressure in the lower belly or groin.ymptoms of late-stage testicular cancer may include: 1  Dull pain in the lower back and belly. 2  Lack of energy, sweating for no clear reason, fever, or a general feeling of illness. 3  Shortness of breath, coughing, or chest pain.