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.
Signs and symptoms of testicular cancer include: 1  A lump or enlargement in either testicle. 2  A feeling of heaviness in the scrotum.3  A dull ache in the abdomen or groin. 4  A sudden collection of fluid in the scrotum. 5  Pain or discomfort in a testicle or the scrotum.6  Enlargement or tenderness of the breasts. 7  Back pain.igns and symptoms of testicular cancer include: 1  A lump or enlargement in either testicle. 2  A feeling of heaviness in the scrotum.